CN111382040A - Network performance testing method and device - Google Patents
Network performance testing method and device Download PDFInfo
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- CN111382040A CN111382040A CN201811633522.XA CN201811633522A CN111382040A CN 111382040 A CN111382040 A CN 111382040A CN 201811633522 A CN201811633522 A CN 201811633522A CN 111382040 A CN111382040 A CN 111382040A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
- G06F11/3414—Workload generation, e.g. scripts, playback
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
- G06F11/3419—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment by assessing time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3457—Performance evaluation by simulation
Abstract
The embodiment of the invention discloses a method and a device for testing network performance, wherein the method is applied to a main storage device end and comprises the following steps: in a test mode, sending a first read-write command to a standby storage device end; receiving a first read-write command completion message returned by the standby storage equipment end, wherein the first read-write command completion message is returned after the SCSI target device of the standby storage equipment end terminates the first read-write command; determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message; determining network transmission performance of a network between the primary storage device end and the secondary storage device end based on the first bandwidth and a first delay. By the embodiment of the invention, the accuracy of the network performance test between the main storage equipment and the standby storage equipment can be improved.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a network performance testing method and device.
Background
In a computer network information storage system, data on a local primary storage device is synchronized to a remote backup storage device through a remote mirroring technique. When the data of the local storage device is lost, the data can be recovered from the allopatric storage device, thereby improving the reliability of the data in the storage device.
The main storage device continuously copies data to the standby storage device in the working process, wherein the copying performance is a key index, and if the performance is poor, the working efficiency of the main storage device is directly influenced, and the user experience is reduced. In order to perform performance tuning, it is often necessary to test the network performance between the primary storage device and the secondary storage device to confirm that the network configuration is optimal.
The current common network performance test method is to access one host in each of the main storage device network and the standby storage device network and to transmit a packet between the two hosts to test the performance. In the method, the network link between the two externally connected hosts and the network link between the main storage device and the standby storage device are not overlapped at a small part, so that the measured result is not complete and accurate, and the problem of low precision of the measured result is caused.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for testing network performance, so as to solve the technical problem of how to improve the accuracy of the network performance test between a main storage device and a standby storage device.
To solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a method for testing network performance, which is applied to a master storage device, where the method includes:
in a test mode, sending a first read-write command to a standby storage device end;
receiving a first read-write command completion message returned by the standby storage equipment end, wherein the first read-write command completion message is returned after the SCSI target device of the standby storage equipment end terminates the first read-write command;
determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message;
determining network transmission performance of a network between the primary storage device end and the secondary storage device end based on the first bandwidth and a first delay.
In a second aspect, an embodiment of the present invention provides a method for testing network performance, where the method is applied to a standby storage device, and the method includes:
receiving a first read-write command sent by a main storage device end in a test mode;
terminating the processing of the first read-write command through an SCSI target at the standby storage equipment end;
and returning a first read-write command completion message to the main storage equipment end, wherein the first read-write command completion message is used for determining the network transmission performance of the network between the main storage equipment end and the standby storage equipment end.
In a third aspect, an embodiment of the present invention provides an apparatus for testing network performance, where the apparatus is applied to a master storage device, and the apparatus includes:
the first sending command module is used for sending a first read-write command to the standby storage equipment terminal in the test mode;
a first message receiving module, configured to receive a first read-write command completion message returned by the standby storage device, where the first read-write command completion message is a message returned by an SCSI target at the standby storage device after the SCSI target terminates the first read-write command;
a first parameter determining module, configured to determine, based on the first read-write command completion message, a first bandwidth and a first delay of a network between the primary storage device side and the secondary storage device side;
a first performance determination module, configured to determine a network transmission performance of a network between the primary storage device side and the secondary storage device side based on the first bandwidth and a first delay.
In a fourth aspect, an embodiment of the present invention provides an apparatus for testing network performance, where the apparatus is applied to a standby storage device, and the apparatus includes:
the first command receiving module is used for receiving a first read-write command sent by the main storage device end in a test mode;
the read-write command processing module is used for terminating the processing of the first read-write command through an SCSI target device at the standby storage equipment end;
and the first command returning module is used for returning a first read-write command completion message to the main storage device end, wherein the first read-write command completion message is used for determining the network transmission performance of the network between the main storage device end and the standby storage device end.
In a fifth aspect, an embodiment of the present invention provides a network device, including a memory, a processor, and a computer program that is executed on the memory and is executable on the processor, where the computer program, when executed by the processor, implements the method for network performance testing according to any one of the first and second aspects.
In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the method for network performance testing according to any one of the first and second aspects.
In the embodiment of the invention, in a test mode, a main storage device end sends a first read-write command to a standby storage device end, and the main storage device end receives a first read-write command completion message returned by the standby storage device end, wherein the first read-write command completion message is a message returned after an SCSI target device of the standby storage device end terminates the first read-write command; and determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message, and determining the network transmission performance of the network between the main storage device end and the standby storage device end based on the first bandwidth and the first delay. In this embodiment, a read-write command is sent from the main storage device end to the spare storage device end, the bandwidth and the delay of the network between the main storage device end and the spare storage device end are calculated based on a first read-write command completion message returned by the SCSI target at the spare storage device end, and the network performance of the network between the main storage device end and the spare storage device end is determined based on the bandwidth and the delay.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flowchart of a method for testing network performance according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a network performance testing method in a normal mode according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a network performance testing method in a test mode according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a read/write command execution path in a normal mode according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a read/write command execution path in a test mode according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a test start/stop message execution path in a test mode according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a method for network performance testing according to another embodiment of the present invention;
fig. 8 is a flowchart illustrating a method for network performance testing according to yet another embodiment of the present invention;
fig. 9 is a schematic diagram illustrating a module composition of an apparatus for network performance testing according to an embodiment of the present invention, the apparatus is applied to a main storage device;
fig. 10 is a schematic diagram illustrating a module composition of an apparatus for network performance testing according to another embodiment of the present invention;
fig. 11 is a schematic diagram illustrating a network device module composition for network performance testing according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flowchart of a method for testing network performance according to an embodiment of the present invention, where the method is applied to a master storage device, and as shown in fig. 1, the flow includes the following steps:
step S102, in a test mode, sending a first read-write command to a standby storage device end;
step S104, receiving a first read-write command completion message returned by the standby storage equipment end, wherein the first read-write command completion message is returned after the SCSI target device of the standby storage equipment end terminates the first read-write command;
step S106, determining a first bandwidth and a first time delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message;
step S108, determining the network transmission performance of the network between the main storage device end and the standby storage device end based on the first bandwidth and the first delay.
In the embodiment of the invention, in a test mode, a main storage device end sends a first read-write command to a spare storage device end, and the main storage device end receives a first read-write command completion message returned by the spare storage device end, wherein the first read-write command completion message is a message returned by a Small Computer System Interface (SCSI) target device of the spare storage device end after the first read-write command is terminated; and determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message, and determining the network transmission performance of the network between the main storage device end and the standby storage device end based on the first bandwidth and the first delay. In this embodiment, a read-write command is sent from the main storage device end to the spare storage device end, the bandwidth and the delay of the network between the main storage device end and the spare storage device end are calculated based on a first read-write command completion message returned by the SCSI target at the spare storage device end, and the network performance of the network between the main storage device end and the spare storage device end is determined based on the bandwidth and the delay.
In the above steps S102 to S104, in the test mode, the primary storage device end sends a first read-write command to the secondary storage device end, and the primary storage device end receives a first read-write command completion message returned by the secondary storage device end, where the first read-write command completion message is a message returned by the SCSI target of the secondary storage device end after the first read-write command is terminated.
In the embodiment of the present invention, the first read-write command completion message is a message returned by the SCSI target at the side of the backup storage device after the first read-write command is terminated, for example, the first read-write command completion message is a message returned by the SCSI target at the side of the backup storage device before the SCSI target at the side of the backup storage device terminates the processing of the read-write command before sending the SCSI target to the protocol stack of the disk device, the processing of the read-write command is performed as a dummy read-write operation, and the first read-write completion message is returned by the side of.
In the above steps S106 to S108, the primary storage device end determines a first bandwidth and a first delay of the network between the primary storage device end and the secondary storage device end based on the first read-write command completion message, and determines the network transmission performance of the network between the primary storage device end and the secondary storage device end based on the first bandwidth and the first delay.
Further, the embodiment of the present invention further includes:
(a1) in the normal mode, sending a second read-write command to the standby storage equipment end;
(a2) receiving a second read-write command completion message returned by the backup storage device end, wherein the second read-write command completion message is a message returned after the disk of the backup storage device end executes the second read-write command;
(a3) determining a second bandwidth and a second delay of a system consisting of a network between the main storage device end and the standby storage device end based on the second read-write command completion message; the second time delay of the system formed by the network between the main storage device end and the standby storage device end comprises the time delay of the network between the main storage device end and the standby storage device end and the time delay of a disk of the standby storage device end;
(a4) and determining the processing performance of a system consisting of a network between the main storage device end and the standby storage device end based on the second bandwidth and the second delay.
In the above actions (a1) to (a2), in the normal mode, the primary storage device side sends the second read/write command to the secondary storage device side; and the main storage device end receives a second read-write command completion message returned by the standby storage device end, wherein the second read-write command completion message is a message returned after the disk of the standby storage device end executes the second read-write command.
In the above actions (a3) to (a4), the primary storage device end determines, based on the second read/write command completion message, a second bandwidth and a second delay of a system formed by the network between the primary storage device end and the secondary storage device end; the second delay of the system formed by the network between the main storage device end and the standby storage device end comprises the network delay between the main storage device end and the standby storage device end and the disk delay of the standby storage device end. And the main storage device determines the processing performance of a system consisting of a network between the main storage device end and the standby storage device end based on the second bandwidth and the second delay.
Further, the embodiment of the present invention further includes:
(b1) when a test starting instruction is received in a normal mode, the main storage equipment end is switched to a test mode from the normal mode;
(b2) and when receiving a test stop instruction in the test mode, switching the main storage device end from the test mode to the normal mode.
In the above-described actions (b1) to (b2), when the main storage device side receives the test start instruction in the normal mode, the main storage device side is switched from the normal mode to the test mode; and when the main storage equipment end receives a test stop instruction in the test mode, switching the main storage equipment end from the test mode to the normal mode.
In one embodiment, when the main storage device receives a test start instruction in the normal mode, the network performance test control module is started to switch the SCSI initiator of the main storage device from the normal mode to the test mode. When the main storage device end receives a test stop instruction in the test mode, the network performance test control module is started to switch the SCSI starter of the main storage device end from the test mode to the normal mode.
Further, the embodiment of the present invention further includes:
(c1) comparing the first bandwidth in the test mode with the first delay and the second bandwidth in the normal mode with the second delay respectively;
(c2) and determining whether the network between the main storage equipment side and the standby storage equipment side has a fault based on the comparison result.
In the above-described actions (c1) to (c2), the primary storage device side compares the first bandwidth in the test mode with the first delay and the second bandwidth in the normal mode with the second delay, respectively, and determines whether the network between the primary storage device side and the secondary storage device side is faulty based on the comparison result.
Further, in the embodiment of the present invention, determining whether a network between the primary storage device side and the secondary storage device side has a fault based on the comparison result includes:
(d1) determining a delay difference between the first delay and the second delay;
(d2) if the first bandwidth is smaller than a preset bandwidth threshold and the first delay is larger than a first preset delay threshold, determining that a fault exists in network transmission between a main storage device end and a standby storage device end;
(d3) and if the second bandwidth is smaller than the preset bandwidth threshold and the delay difference is larger than the second preset delay threshold, determining that the disk at the side of the standby storage device fails.
In the above actions (d1) to (d3), the primary storage device end determines a delay difference between the first delay and the second delay, and if the first bandwidth is smaller than the preset bandwidth threshold and the first delay is greater than the first preset delay threshold, it is determined that there is a failure in network transmission between the primary storage device end and the secondary storage device end, and if the second bandwidth is smaller than the preset bandwidth threshold and the delay difference is greater than the second preset delay threshold, it is determined that a disk of the secondary storage device end has a failure.
In the embodiment of the present invention, the preset bandwidth threshold is set according to the size of the bandwidth when the network transmission between the main storage device end and the backup storage device end is normal, for example, the preset bandwidth threshold may be set to 10Mbps, and may also be set to other numerical values, which is not particularly limited herein. The first preset delay threshold is determined according to the network delay when the network transmission between the main storage device end and the backup storage device end is normal, and can be set to be 8ms or other values, and is not specially limited here; the second preset delay threshold is determined according to the delay of the disk at the side of the backup storage device when the disk is normal, and may be set to 80ms, or may be set to another value, which is not particularly limited herein.
For example, if the preset bandwidth threshold is 10Mbps, the first preset delay threshold is 8ms, the first bandwidth value is 5Mbps, and the first delay is 50ms, it is satisfied that the first bandwidth value of 5Mbps is less than the preset bandwidth threshold of 10Mbps, and the first delay of 50ms is greater than the first preset delay threshold of 8ms, it is determined that there is a failure in network transmission between the main storage device end and the auxiliary storage device end.
If the preset bandwidth threshold is 10Mbps, the second preset delay threshold is 80ms, the second bandwidth value is 5Mbps, the first delay is 10ms, the second delay is 210ms, and it is obtained that the delay difference between the first delay and the second delay is 200ms, it is satisfied that the second bandwidth 5Mbps is less than the preset bandwidth threshold 10Mbps, and the delay difference 200ms is greater than the second preset delay threshold 80ms, and it is determined that the disk at the storage device side fails.
In one embodiment, if the preset bandwidth threshold is 10Mbps, the first preset delay threshold is 8ms, the first delay is 50ms, the second delay is 250ms, and it is found that a delay difference between the first delay and the second delay is 200ms, the first bandwidth is 8Mbps, and the second bandwidth is 5Mbps, it is satisfied that the first bandwidth value of 8Mbps is less than the preset bandwidth threshold of 10Mbps, the first delay of 50ms is greater than the first preset delay threshold of 8ms, and it is satisfied that the second bandwidth of 5Mbps is less than the preset bandwidth threshold of 10Mbps, and the delay difference of 200ms is greater than the second preset delay threshold of 80ms, it is determined that both network transmission and disks between the main storage device end and the main storage device end have faults.
In another embodiment, if the preset bandwidth threshold is 10Mbps, the first preset delay threshold is 8ms, the second bandwidth value is 12Mbps, and the first delay is 6ms, it is determined that the network transmission and the disk between the primary storage device side and the secondary storage device side are normal.
Further, in the embodiment of the present invention, sending the first read-write command to the standby storage device side includes:
(e1) generating a first read-write command through a disk performance test module of a main storage device end;
(e2) sending a read-write instruction to the SCSI starter through the block device layer based on the first read-write command;
(e3) and sending a first read-write command to the standby storage equipment terminal through the SCSI initiator based on the read-write instruction.
In the above-described actions (e1) to (e3), the primary storage device generates a first read/write command by the disk performance test module, sends a read/write command to the SCSI initiator through the block device layer based on the first read/write command, and sends the first read/write command to the secondary storage device through the SCSI initiator based on the read/write command.
In this embodiment, the disk performance testing module has software for testing the performance of a general disk or volume, such as vddbech, fio, dd, and the specific software is not limited here.
Fig. 2 is a schematic block diagram of a network performance testing method in a normal mode according to an embodiment of the present invention, as shown in fig. 2, including: a main storage device 201 for storing data. The system comprises a network protocol stack 203, a SCSI initiator 204, a block device layer 205 and disk performance testing software 206, and is connected with a standby storage device 202 through a network 210 such as an Ethernet or FC network; the functions of the modules are as follows:
a backup storage device 202 for storing backup data. The system consists of a network protocol stack 203, a SCSI target 207, a disk device protocol stack 208 and a disk 209, and is connected with a main storage device 201 through a network 210;
a network protocol stack 203 for receiving and transmitting data over a network 210;
an SCSI initiator 204 that constructs an SCSI read-write command and sends the SCSI read-write command to the network protocol stack 203;
the block device layer 205 receives the read-write command of the disk performance testing software 206, and instructs the SCSI initiator to send a corresponding SCSI read-write command;
disk performance testing software 206, general disk and volume performance testing software, such as vdbech, fio, dd, etc., sends read-write commands;
and a SCSI target 207 for receiving the SCSI read/write command sent by the network protocol stack 203 and processing the SCSI read/write command. In the normal mode, sending the SCSI reading and writing command to a protocol stack of the disk equipment for execution;
the disk device protocol stack 208 analyzes the SCSI read-write command, and decomposes and issues the read-write command to the disk for execution;
a disk 209 storing a mirror volume of a main storage device;
an ethernet or FC network 210, a network for transporting data.
Fig. 3 is a schematic block diagram of a network performance testing method in a test mode according to an embodiment of the present invention, and as shown in fig. 3, the module includes a main storage device 301 and a main device for storing data. The system consists of a network protocol stack 303, a SCSI initiator 304, a block device layer 305, disk performance test software 306 and a network performance test control module 307, and is connected with a standby storage device 302 through an Ethernet or FC network 309; the functions of the modules are as follows:
a backup storage device 302, a device for storing backup data. The network protocol stack 303 and the SCSI target 308 are connected with the main storage device 301 through the Ethernet or FC network 309;
a network protocol stack 303 for receiving and transmitting data over a network 309;
the SCSI initiator 304 sends an SCSI read-write command to the network protocol stack 303;
in the test mode, besides the function of normal mode, it can also send the start/stop message of network performance test;
the block device layer 305 receives the read-write command of the disk performance testing software 306 and instructs the SCSI initiator to send a corresponding SCSI read-write command;
disk performance testing software 306, general disk and volume performance testing software such as vdbech, fio, dd and the like, sends out read-write commands;
a network performance test control module 307 for controlling the switching between the normal mode and the test mode and instructing the SCSI initiator to send a network performance test start/stop message;
and the SCSI target 308 is configured to receive the SCSI read/write command sent by the network protocol stack 303 and process the SCSI read/write command. In the test mode, for the network performance test starting/stopping message, the test mode is opened/closed, and a network performance test starting/stopping success message is returned; for the ordinary SCSI reading and writing command, the command is not sent to the protocol stack of the disk device, but the processing of the reading and writing command is terminated in advance, pseudo reading and writing operation is carried out, and a reading and writing completion message is returned;
an ethernet or FC network 309 for the network that transports data.
Fig. 4 is a schematic diagram of a read/write command execution path in a normal mode according to an embodiment of the present invention, as shown in fig. 4, a command 411 for reading and writing a mirror volume, which is sent by disk performance test software 406, is transmitted and processed by a block device layer 405, an SCSI initiator 404, a network protocol stack 403, a network 410, a network protocol stack 403 in a standby storage device, an SCSI target 407, and a disk device protocol stack 408 module, and finally reaches a disk 409. The disk 409 executes the read/write command and returns a read/write command complete message 412. The read/write command complete message 412 is transmitted and processed by the modules and finally reaches the disk performance testing software 406.
Fig. 5 is a schematic diagram of a read/write command execution path in a test mode according to an embodiment of the present invention, and as shown in fig. 5, a command 509 for reading and writing a mirror volume, which is sent by disk performance test software 506, is transmitted and processed through a block device layer 505, an SCSI initiator 504, a network protocol stack 503, a network 508, and a network protocol stack 503 module in a standby storage device, and finally reaches an SCSI target 507. The SCSI target 507 terminates the processing of the read/write command in advance and returns a read/write command complete message 510. The read/write command completion message 510 is transmitted and processed by the above modules, and finally reaches the disk performance test software 506.
Fig. 6 is a schematic diagram of a test start/stop message execution path in a test mode according to an embodiment of the present invention, and as shown in fig. 6, a network performance test start/stop message 608 sent by a network performance test control module 605 respectively passes through transmission and processing of SCSI initiators 604, network protocol stacks 603, a network 607, and network protocol stacks 603 in a standby storage device, and finally reaches an SCSI target 606. The SCSI target 606 switches to the test mode/normal mode according to the message content, e.g., test start/stop message, and returns a network performance test start/stop success message 609. The network performance test start/stop success message 609 is transmitted and processed by the above modules, and finally reaches the network performance test control module 605.
Fig. 7 is a schematic flowchart of a method for testing network performance according to another embodiment of the present invention, where the method is applied to a side of a storage device, as shown in fig. 7, the process includes the following steps:
step S702, in the test mode, receiving a first read-write command sent by a main storage device end;
step S704, the processing of the first read-write command is terminated through the SCSI target device of the backup storage device end;
step S706, a first read-write command completion message is returned to the primary storage device end, where the first read-write command completion message is used to determine the network transmission performance of the network between the primary storage device end and the backup storage device end.
In the embodiment of the invention, in the test mode, the standby storage equipment end receives a first read-write command sent by the main storage equipment end, the processing of the first read-write command is terminated through an SCSI target of the standby storage equipment end, the standby storage equipment end returns a first read-write command completion message to the main storage equipment end, and the first read-write command completion message is used for determining the network transmission performance of a network between the main storage equipment end and the standby storage equipment end. In this embodiment, a read-write command is sent from the main storage device end to the spare storage device end, the bandwidth and the delay of the network between the main storage device end and the spare storage device end are calculated based on a first read-write command completion message returned by the SCSI target at the spare storage device end, and the network performance of the network between the main storage device end and the spare storage device end is determined based on the bandwidth and the delay.
In the above steps S702 to S706, in the test mode, the backup storage device end receives the first read-write command sent by the primary storage device end, the processing of the first read-write command is terminated by the SCSI target of the backup storage device end, and the backup storage device end returns a first read-write command completion message to the primary storage device end, where the first read-write command completion message is used to determine the network transmission performance of the network between the primary storage device end and the backup storage device end.
Further, the embodiment of the present invention further includes:
(f1) receiving a second read-write command sent by the main storage device end in a normal mode;
(f2) executing a second read-write command through a magnetic disk of the standby storage equipment end;
(f3) and returning a second read-write command completion message to the main storage device end, wherein the second read-write command completion message is used for determining the processing performance of a system formed by a network between the main storage device end and the standby storage device end.
In the above actions (f1) to (f3), in the normal mode, the backup storage device end receives the second read/write command sent by the main storage device end, the second read/write command is executed by the disk of the backup storage device end, the backup storage device end returns a second read/write command completion message to the main storage device end, and the second read/write command completion message is used to determine the processing performance of the system formed by the network between the main storage device end and the backup storage device end.
Further, the embodiment of the present invention further includes:
(g1) when a test starting instruction is received in the normal mode, the standby storage equipment end is switched to the test mode from the normal mode;
(g2) and when receiving a test stop instruction in the test mode, switching the standby storage equipment end from the test mode to the normal mode.
In the above steps (g1) to (g2), when the standby storage device end receives the test start instruction of the main storage device end in the normal mode, the standby storage device end is switched from the normal mode to the test mode, and when the standby storage device end receives the test stop instruction of the main storage device end in the test mode, the standby storage device end is switched from the test mode to the normal mode.
Fig. 8 is a schematic flowchart of a method for testing network performance according to still another embodiment of the present invention, as shown in fig. 8, the flowchart includes the following steps:
step S802, switching the SCSI starter to a test mode through the network performance test module;
step S804, sending a network performance test starting message to the standby storage equipment;
step S806, the SCSI target enters a test mode;
step S808, sending a successful message of starting the network performance test to the main memory device;
step S810, sending a read-write command to the standby storage device;
step S812, the SCSI target device terminates the processing of the read-write command, does the false operation, and returns the message of completing the read-write command to the main storage device end;
step S814, calculating the bandwidth and delay between the primary storage device and the backup storage device;
step S816, sending a network performance test stop message to the standby storage device;
step S818, the SCSI target exits the test mode and sends a network performance test stop success message to the main storage device;
in step S820, the SCSI initiator exits the test mode.
In the embodiment of the invention, in a test mode, a main storage device end sends a first read-write command to a standby storage device end, and the main storage device end receives a first read-write command completion message returned by the standby storage device end, wherein the first read-write command completion message is a message returned after an SCSI target device of the standby storage device end terminates the first read-write command; and determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message, and determining the network transmission performance of the network between the main storage device end and the standby storage device end based on the first bandwidth and the first delay. In this embodiment, a read-write command is sent from the main storage device end to the spare storage device end, the bandwidth and the delay of the network between the main storage device end and the spare storage device end are calculated based on a first read-write command completion message returned by the SCSI target at the spare storage device end, and the network performance of the network between the main storage device end and the spare storage device end is determined based on the bandwidth and the delay.
Fig. 9 is a schematic diagram illustrating a module composition of an apparatus for network performance testing according to an embodiment of the present invention, where the apparatus is applied to a main storage device, as shown in fig. 9, the apparatus includes:
the first sending command module 91 is configured to send a first read-write command to the standby storage device in the test mode;
a first message receiving module 92, configured to receive a first read-write command completion message returned by the standby storage device, where the first read-write command completion message is a message returned by a SCSI target of the standby storage device after the SCSI target terminates the first read-write command;
a first parameter determining module 93, configured to determine, based on the first read-write command completion message, a first bandwidth and a first delay of a network between the primary storage device side and the secondary storage device side;
a first performance determining module 94, configured to determine a network transmission performance of a network between the primary storage device side and the secondary storage device side based on the first bandwidth and a first delay.
Optionally, the apparatus further comprises:
the second sending command module is used for sending a second read-write command to the standby storage equipment terminal in a normal mode;
a second message receiving module, configured to receive a second read/write command completion message returned by the backup storage device, where the second read/write command completion message is a message returned after the disk of the backup storage device executes the second read/write command;
the second parameter determining module is used for determining a second bandwidth and a second delay of a system consisting of the network between the main storage device end and the standby storage device end based on the second read-write command completion message; the second latency of the system comprises latency of the network and latency of the disk;
and the second performance determining module is used for determining the processing performance of a system consisting of the network between the main storage device end and the standby storage device end based on the second bandwidth and the second delay.
Optionally, the apparatus further comprises:
a first test mode module, configured to switch the main storage device side from the normal mode to the test mode when a test start instruction is received in the normal mode;
the first normal mode module is used for switching the main storage device end from the test mode to the normal mode when receiving a test stop instruction in the test mode.
Optionally, the apparatus further comprises:
a bandwidth delay comparison module, configured to compare the first bandwidth and the first delay in the test mode and the second bandwidth and the second delay in the normal mode, respectively;
and the network fault determining module is used for determining whether the network between the main storage equipment end and the standby storage equipment end has a fault or not based on the comparison result.
Optionally, the network failure determination module is specifically configured to:
determining a delay difference between the first delay and the second delay;
if the first bandwidth is smaller than a preset bandwidth threshold and the first delay is larger than a first preset delay threshold, determining that network transmission between the main storage device end and the standby storage device end has a fault;
and if the second bandwidth is smaller than the preset bandwidth threshold and the delay difference is larger than a second preset delay threshold, determining that the disk of the standby storage equipment end fails.
Optionally, the first sending command module 91 is specifically configured to:
generating the first read-write command through a disk performance test module of the main storage device end;
sending a read-write instruction to the SCSI starter through a block device layer based on the first read-write command;
and sending the first read-write command to the standby storage equipment end through the SCSI initiator based on the read-write instruction.
In this embodiment, a read-write command is sent from the main storage device end to the spare storage device end, the bandwidth and the delay of the network between the main storage device end and the spare storage device end are calculated based on a first read-write command completion message returned by the SCSI target at the spare storage device end, and the network performance of the network between the main storage device end and the spare storage device end is determined based on the bandwidth and the delay.
The device for testing network performance provided by this embodiment can implement the specific processes of the above method embodiments, and achieve the same effects, which are not repeated here.
Fig. 10 is a schematic diagram illustrating a module composition of an apparatus for network performance testing according to another embodiment of the present invention, where the apparatus is applied to a side of a storage device, as shown in fig. 10, the apparatus includes:
a first command receiving module 110, configured to receive, in a test mode, a first read-write command sent by a main storage device;
a read-write command processing module 120, configured to terminate processing of the first read-write command by using an SCSI target at the standby storage device end;
a first command returning module 130, configured to return a first read-write command completion message to the primary storage device end, where the first read-write command completion message is used to determine the network transmission performance of the network between the primary storage device end and the secondary storage device end.
Optionally, the apparatus further comprises:
a second command receiving module, configured to receive, in a normal mode, a second read/write command sent by the main storage device;
the second command execution module is used for executing the second read-write command through a magnetic disk of the storage device side;
and the second command returning module is used for returning a second read-write command completion message to the main storage device end, wherein the second read-write command completion message is used for determining the processing performance of a system formed by a network between the main storage device end and the standby storage device end.
Optionally, the apparatus further comprises:
the second test mode module is used for switching the standby storage equipment end from the normal mode to the test mode when receiving a test starting instruction in the normal mode;
and the second normal mode module is used for switching the standby storage equipment end from the test mode to the normal mode when receiving a test stop instruction in the test mode.
In the embodiment of the invention, in a test mode, a main storage device end sends a first read-write command to a standby storage device end, and the main storage device end receives a first read-write command completion message returned by the standby storage device end, wherein the first read-write command completion message is a message returned after an SCSI target device of the standby storage device end terminates the first read-write command; and determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message, and determining the network transmission performance of the network between the main storage device end and the standby storage device end based on the first bandwidth and the first delay. In this embodiment, a read-write command is sent from the main storage device end to the spare storage device end, the bandwidth and the delay of the network between the main storage device end and the spare storage device end are calculated based on a first read-write command completion message returned by the SCSI target at the spare storage device end, and the network performance of the network between the main storage device end and the spare storage device end is determined based on the bandwidth and the delay.
The device for testing network performance provided by this embodiment can implement the specific processes of the above method embodiments, and achieve the same effects, which are not repeated here.
A method and an apparatus for testing network performance are provided according to an embodiment of the present invention, and a network device is provided in an embodiment of the present invention, and as shown in fig. 11, the network device includes a processor 610, a transceiver 620, a memory 630, and a bus interface 600. Wherein:
in this embodiment of the present invention, the network device further includes: a computer program stored in the memory 630 and capable of running on the processor 610, where the computer program, when executed by the processor 610, implements each method and process implemented by the main storage device, and can achieve the same technical effect, and is not described herein again to avoid repetition.
Of course, the computer program is executed by the processor 610 to implement the above-mentioned methods and processes implemented by the storage device, and can achieve the same technical effect, and is not described herein again to avoid repetition.
In FIG. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 610, and various circuits, represented by memory 630, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. Bus interface 600 provides an interface. The transceiver 620 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 610 is responsible for managing the bus architecture and general processing, and the memory 630 may store data used by the processor 610 in performing operations.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the method embodiments, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (20)
1. A method for testing network performance is applied to a main storage device, and is characterized in that the method comprises the following steps:
in a test mode, sending a first read-write command to a standby storage device end;
receiving a first read-write command completion message returned by the standby storage equipment end, wherein the first read-write command completion message is returned after the SCSI target device of the standby storage equipment end terminates the first read-write command;
determining a first bandwidth and a first delay of a network between the main storage device end and the standby storage device end based on the first read-write command completion message;
determining network transmission performance of a network between the primary storage device end and the secondary storage device end based on the first bandwidth and a first delay.
2. The method of claim 1, further comprising:
in a normal mode, sending a second read-write command to the standby storage equipment end;
receiving a second read-write command completion message returned by the standby storage equipment end, wherein the second read-write command completion message is a message returned after the disk of the standby storage equipment end executes the second read-write command;
determining a second bandwidth and a second delay of a system consisting of the network between the main storage device end and the standby storage device end based on the second read-write command completion message, wherein the second delay of the system comprises the delay of the network and the delay of the disk;
and determining the processing performance of a system consisting of the network between the main storage equipment end and the standby storage equipment end based on the second bandwidth and the second delay.
3. The method of claim 2, further comprising:
when a test starting instruction is received in the normal mode, the main storage equipment end is switched to the test mode from the normal mode;
and when a test stop instruction is received in the test mode, switching the main storage device end from the test mode to the normal mode.
4. The method of claim 2, further comprising:
comparing the first bandwidth and first delay in the test mode and the second bandwidth and second delay in the normal mode, respectively;
and determining whether the network between the main storage equipment end and the standby storage equipment end has faults or not based on the comparison result.
5. The method according to claim 4, wherein determining whether the network between the primary storage device side and the backup storage device side is faulty based on the comparison result comprises:
determining a delay difference between the first delay and the second delay;
if the first bandwidth is smaller than a preset bandwidth threshold and the first delay is larger than a first preset delay threshold, determining that network transmission between the main storage device end and the standby storage device end has a fault;
and if the second bandwidth is smaller than the preset bandwidth threshold and the delay difference is larger than a second preset delay threshold, determining that the disk of the standby storage equipment end fails.
6. The method according to any one of claims 1 to 5, wherein sending the first read-write command to the backup storage device side includes:
generating the first read-write command through a disk performance test module of the main storage device end;
sending a read-write instruction to the SCSI starter through a block device layer based on the first read-write command;
and sending the first read-write command to the standby storage equipment end through the SCSI initiator based on the read-write instruction.
7. A method for testing network performance is applied to a backup storage device end, and is characterized in that the method comprises the following steps:
receiving a first read-write command sent by a main storage device end in a test mode;
terminating the processing of the first read-write command through an SCSI target at the standby storage equipment end;
and returning a first read-write command completion message to the main storage equipment end, wherein the first read-write command completion message is used for determining the network transmission performance of the network between the main storage equipment end and the standby storage equipment end.
8. The method of claim 7, further comprising:
receiving a second read-write command sent by the main storage device end in a normal mode;
executing the second read-write command through a disk of the standby storage equipment end;
and returning a second read-write command completion message to the main storage device end, wherein the second read-write command completion message is used for determining the processing performance of a system formed by a network between the main storage device end and the standby storage device end.
9. The method of claim 8, further comprising:
when a test starting instruction is received in the normal mode, the standby storage equipment end is switched to the test mode from the normal mode;
and when a test stopping instruction is received in the test mode, switching the standby storage equipment end from the test mode to the normal mode.
10. An apparatus for testing network performance, applied to a main storage device, the apparatus comprising:
the first sending command module is used for sending a first read-write command to the standby storage equipment terminal in the test mode;
a first message receiving module, configured to receive a first read-write command completion message returned by the standby storage device, where the first read-write command completion message is a message returned by an SCSI target at the standby storage device after the SCSI target terminates the first read-write command;
a first parameter determining module, configured to determine, based on the first read-write command completion message, a first bandwidth and a first delay of a network between the primary storage device side and the secondary storage device side;
a first performance determination module, configured to determine a network transmission performance of a network between the primary storage device side and the secondary storage device side based on the first bandwidth and a first delay.
11. The apparatus of claim 10, further comprising:
the second sending command module is used for sending a second read-write command to the standby storage equipment terminal in a normal mode;
a second message receiving module, configured to receive a second read/write command completion message returned by the backup storage device, where the second read/write command completion message is a message returned after the disk of the backup storage device executes the second read/write command;
a second parameter determining module, configured to determine, based on the second read/write command completion message, a second bandwidth and a second delay of a system including the network between the main storage device and the spare storage device, where the second delay of the system includes a delay of the network and a delay of the disk;
and the second performance determining module is used for determining the processing performance of a system consisting of the network between the main storage device end and the standby storage device end based on the second bandwidth and the second delay.
12. The apparatus of claim 11, further comprising:
a first test mode module, configured to switch the main storage device side from the normal mode to the test mode when a test start instruction is received in the normal mode;
the first normal mode module is used for switching the main storage device end from the test mode to the normal mode when receiving a test stop instruction in the test mode.
13. The apparatus of claim 11, further comprising:
a bandwidth delay comparison module, configured to compare the first bandwidth and the first delay in the test mode and the second bandwidth and the second delay in the normal mode, respectively;
and the network fault determining module is used for determining whether the network between the main storage equipment end and the standby storage equipment end has a fault or not based on the comparison result.
14. The apparatus of claim 13, wherein the network failure determination module is specifically configured to:
determining a delay difference between the first delay and the second delay;
if the first bandwidth is smaller than a preset bandwidth threshold and the first delay is larger than a first preset delay threshold, determining that network transmission between the main storage device end and the standby storage device end has a fault;
and if the second bandwidth is smaller than the preset bandwidth threshold and the delay difference is larger than a second preset delay threshold, determining that the disk of the standby storage equipment end fails.
15. The apparatus according to any of claims 10 to 14, wherein the first sending command module is specifically configured to:
generating the first read-write command through a disk performance test module of the main storage device end;
sending a read-write instruction to the SCSI starter through a block device layer based on the first read-write command;
and sending the first read-write command to the standby storage equipment end through the SCSI initiator based on the read-write instruction.
16. A network performance testing device is applied to a storage device side, and is characterized by comprising:
the first command receiving module is used for receiving a first read-write command sent by the main storage device end in a test mode;
the read-write command processing module is used for terminating the processing of the first read-write command through an SCSI target device at the standby storage equipment end;
and the first command returning module is used for returning a first read-write command completion message to the main storage device end, wherein the first read-write command completion message is used for determining the network transmission performance of the network between the main storage device end and the standby storage device end.
17. The apparatus of claim 16, further comprising:
a second command receiving module, configured to receive, in a normal mode, a second read/write command sent by the main storage device;
the second command execution module is used for executing the second read-write command through a magnetic disk of the storage device side;
and the second command returning module is used for returning a second read-write command completion message to the main storage device end, wherein the second read-write command completion message is used for determining the processing performance of a system formed by a network between the main storage device end and the standby storage device end.
18. The apparatus of claim 17, further comprising:
the second test mode module is used for switching the standby storage equipment end from the normal mode to the test mode when receiving a test starting instruction in the normal mode;
and the second normal mode module is used for switching the standby storage equipment end from the test mode to the normal mode when receiving a test stop instruction in the test mode.
19. A network device comprising a memory, a processor and a computer program running on the memory and on the processor, the computer program when executed by the processor implementing the method of network performance testing of any of claims 1-6 or 7-9.
20. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, implements a method of network performance testing as claimed in any one of claims 1-6 or 7-9.
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