CN112463670A - Storage controller access method and related device - Google Patents
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- CN112463670A CN112463670A CN202011343128.XA CN202011343128A CN112463670A CN 112463670 A CN112463670 A CN 112463670A CN 202011343128 A CN202011343128 A CN 202011343128A CN 112463670 A CN112463670 A CN 112463670A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000006870 function Effects 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000013500 data storage Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0026—PCI express
Abstract
The application discloses a storage controller access method, which comprises the following steps: the HBA card processes the received access request to obtain access forwarding data; determining a target controller from the plurality of controllers according to a preset controller number; wherein the plurality of controllers are each connected to the HBA card; and sending the access forwarding data to the target controller. The target controller is determined from the multiple controllers when the HBA card sends the access forwarding data, and then the data is sent instead of only specifying a single controller, so that the reliability of accessing the storage controller is improved. The application also discloses a storage controller access device, a server and a computer readable storage medium, which have the beneficial effects.
Description
Technical Field
The present application relates to the field of storage technologies, and in particular, to a storage controller access method, a storage controller access apparatus, a server, and a computer-readable storage medium.
Background
With the continuous development of data storage technology, various data storage technologies are currently available. Among them, the HBA (Host Bus adapter) card can be inserted into a board card of a Computer, a server, or a large Host, and the Computer is connected to a memory or a memory network through a fiber channel or a SCSI (Small Computer System Interface). A host bus adapter is a circuit board or integrated circuit adapter that provides input/output processing and physical connections between a server and a storage device. Because the HBA relieves the host processor of the data storage and retrieval tasks, it can improve the performance of the server. An HBA and its associated disk subsystem are sometimes collectively referred to as a disk channel.
In the related art, the storage controller and the HBA card are in a one-to-one relationship, that is, the storage and the HBA card at the front end belong to only one controller, and even if a switch is added between the host and the storage, only multiple hosts can share the same storage device, but in the storage engine, only one HBA card can be accessed by one controller, and only one controller can be accessed by the host through one HBA card. When the controller corresponding to the HBA card fails, the whole controller, the HBA card and a link from the HBA card to a host end can not work any more, the service needs to be switched to other HBA cards and the corresponding controllers through a host redundant link, the whole service switching process comprises three parts of link switching, switch port switching and HBA card switching, the delay is more than 20 seconds, the networking is complex, more physical redundant links are high, the cost is high, and the reliability of the HBA card accessing the storage controller is reduced.
Therefore, how to improve the reliability of the HBA card access controller is a key issue that is of concern to those skilled in the art.
Disclosure of Invention
The aim of the application is to provide a storage controller access method, a storage controller access device, a server and a computer readable storage medium, when transmitting access forwarding data, a target controller is determined from a plurality of controllers through an HBA card, and then data transmission is carried out, instead of only specifying a single controller, so that the reliability of accessing the storage controller is improved.
In order to solve the above technical problem, the present application provides a storage controller access method, including:
the HBA card processes the received access request to obtain access forwarding data;
determining a target controller from the plurality of controllers according to a preset controller number; wherein the plurality of controllers are each connected to the HBA card;
and sending the access forwarding data to the target controller.
Optionally, sending the access forwarding data to the target controller includes:
the HBA card sends the access forwarding data to the target controller through the PCIE SWITCH chip.
Optionally, the PCIE SWITCH chip is a PCIE SWITCH chip with a Multihost function.
Optionally, the PCIE SWITCH chip is a PCIE SWITCH chip with a part function.
Optionally, the method further includes:
when the target controller fails, determining a new controller number;
and sending the access forwarding data to the controller corresponding to the new controller number according to the new controller number.
Optionally, when the target controller fails, determining a new controller number includes:
and when the target controller fails, determining the new controller number according to the controller state.
Optionally, when the target controller fails, determining a new controller number includes:
and when the target controller fails, determining the new controller number according to the data transmission performance.
The present application further provides a storage controller access apparatus, including:
the request processing module is used for processing the received access request to obtain access forwarding data;
the target controller determining module is used for determining a target controller from the plurality of controllers according to a preset controller number; wherein the plurality of controllers are each connected to the HBA card;
and the data sending module is used for sending the access forwarding data to the target controller.
The present application further provides a server, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the storage controller access method as described above when executing the computer program.
The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the storage controller access method as described above.
The application provides a storage controller access method, which comprises the following steps: the HBA card processes the received access request to obtain access forwarding data; determining a target controller from the plurality of controllers according to a preset controller number; wherein the plurality of controllers are each connected to the HBA card; and sending the access forwarding data to the target controller.
The target controller is determined from the multiple controllers when the HBA card sends the access forwarding data, and then the data is sent instead of only specifying a single controller, so that the reliability of accessing the storage controller is improved.
The present application further provides a storage controller access device, a server, and a computer-readable storage medium, which have the above beneficial effects, and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flowchart of a storage controller access method according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a storage controller access apparatus according to an embodiment of the present disclosure.
Detailed Description
The core of the application is to provide a storage controller access method, a storage controller access device, a server and a computer readable storage medium, when transmitting access forwarding data, the HBA card determines a target controller from a plurality of controllers, and then transmits the data, instead of only specifying a single controller, so that the reliability of accessing the storage controller is improved.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. 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 application.
In the related art, the storage controller and the HBA card are in a one-to-one relationship, that is, the storage and the HBA card at the front end belong to only one controller, and even if a switch is added between the host and the storage, only multiple hosts can share the same storage device, but in the storage engine, only one HBA card can be accessed by one controller, and only one controller can be accessed by the host through one HBA card. When the controller corresponding to the HBA card fails, the whole controller, the HBA card and a link from the HBA card to a host end can not work any more, the service needs to be switched to other HBA cards and the corresponding controllers through a host redundant link, the whole service switching process comprises three parts of link switching, switch port switching and HBA card switching, the delay is more than 20 seconds, the networking is complex, more physical redundant links are high, the cost is high, and the reliability of the HBA card accessing the storage controller is reduced.
Therefore, the application also provides a storage controller access method, when the HBA card sends access forwarding data, the target controller is determined from the multiple controllers, and then the data is sent instead of only one controller, so that the reliability of accessing the storage controller is improved.
The following describes a storage controller access method provided by the present application, by way of an embodiment.
Referring to fig. 1, fig. 1 is a flowchart illustrating a memory controller access method according to an embodiment of the present disclosure.
In this embodiment, the method may include:
s101, the HBA card processes the received access request to obtain access forwarding data;
it can be seen that, in this step, the HBA card mainly processes the received access request to obtain access forwarding data.
The HBA card can be inserted into a card of a computer, a server or a large host, and the computer is connected to a memory or a memory network through an optical fiber channel or SCSI. A host bus adapter is a circuit board or integrated circuit adapter that provides input/output processing and physical connections between a server and a storage device. Because the HBA relieves the host processor of the data storage and retrieval tasks, it can improve the performance of the server. An HBA and its associated disk subsystem are sometimes collectively referred to as a disk channel.
The process of processing the received access request in this step may adopt any request processing manner provided in the prior art, which is not specifically limited herein.
In the prior art, generally, access forwarding data obtained by processing the access request is directly sent to a controller connected in a single manner.
S102, determining a target controller from a plurality of controllers according to a preset controller number; wherein, a plurality of controllers are connected with the HBA card;
on the basis of S101, this step is intended to determine a target controller from a plurality of controllers based on a preset controller number; wherein, a plurality of controllers are all connected with the HBA card.
The preset controller number refers to a controller number set in the HBA card in advance. The preset controller number may be a controller number that a technician sets in advance in the HBA card, and the controller number may be a controller number of a default controller. Or may be a controller number determined according to the situation of the current storage controller. It can be seen that the manner of determining the preset controller number in this step is not unique, and is not specifically limited herein.
S103, sending the access forwarding data to the target controller.
On the basis of S102, this step is intended to transmit the access forwarding data to the target controller.
Further, in order to improve the efficiency of data transmission, the step may include:
the HBA card sends the access forwarding data to the target controller through the PCIE SWITCH chip.
It can be seen that, in this alternative, the access forwarding data is mainly sent to the target controller through a PCIE (peripheral component interconnect express) SWITCH chip. One of the biggest essential differences of using Switch with respect to a bridge is that Switch exchange is used instead of Bus among multiple roles in the same Bus. The efficiency and speed of signal switching are improved.
Further, the PCIE SWITCH chip in this alternative may be a PCIE SWITCH chip with a Multihost function.
It can be seen that the PCIE SWITCH chip in this alternative may be a PCIE SWITCH chip with a Multihost function. Among them, the multi host is a multi-pass technology. By adopting the Multi-Host technology, a plurality of computing and storage nodes can be interconnected with the outside through a single network card. Compared with the prior art, the data center adopting the Multi-Host technology has the advantages that the number of the switches, the network cards and the cables can be reduced by 4 times, and the total investment of the data center is greatly reduced. That is, the cost in the data transmission process is reduced while the data performance is improved.
Further, the PCIE SWITCH chip in this alternative may be a PCIE SWITCH chip with a partition function.
It can be seen that the PCIE SWITCH chip in this alternative may be the PCIE SWITCH chip with the partition function. The partition function refers to a partition function of network transmission.
Further, in order to improve the reliability of determining the controller in the method, the embodiment may further include:
step 1, when a target controller fails, determining a new controller number;
and 2, sending the access forwarding data to the controller corresponding to the new controller number according to the new controller number.
It can be seen that the present alternative is primarily illustrative of operation when a controller failure occurs. The alternative scheme firstly determines a new controller number when a target controller fails; and then, sending the access forwarding data to the controller corresponding to the new controller number according to the new controller number. Therefore, when the controller fails, only the connected controllers need to be switched, and the repair efficiency and speed of the controller failure are improved.
Further, step 1 in this alternative may include:
when the target controller fails, a new controller number is determined according to the controller state.
It can be seen that in this alternative, when the target controller fails, the new control number is determined based on the controller status. The controller state refers to a performance state of the controller at the moment, and belongs to a working state or an idle state. Further, the controller number corresponding to the currently idle controller is selected as the new controller number.
Further, step 1 in this alternative may include:
when the target controller fails, a new controller number is determined according to the data transmission performance.
It can be seen that in the present alternative scheme, mainly when the target controller fails, the new controller number is determined according to the data transmission performance so as to improve the new controller performance.
In summary, in this embodiment, when the HBA card transmits the access forwarding data, the HBA card determines the target controller from the multiple controllers and then transmits the data, instead of specifying only a single controller, so that the reliability of accessing the storage controller is improved.
The following further describes a memory controller access method provided by the present application by a specific embodiment.
In this embodiment, an PCIE SWITCH chip with a multiply/part function, such as Broadcom or michichip, is added to the HBA card.
Based on this, the technical scheme in this embodiment includes:
step 1, placing PCIE SWITCH chips with a multiply/part function of Broadcom or Micochip into an HBA card, and connecting the PCIE SWITCH chips with an original chip of the HBA card through a PCIE channel;
step 2, the host port of the HBA card is kept unchanged, and a plurality of ports of the SWITCH chip are respectively connected with each controller;
step 3, by using the switching function of the HBA card, each host port service can be sent to PCIE SWITCH chips;
and 4, each controller can realize connection and service exchange with the PCIE SWITCH chip by using the Multihost/partition function of PCIE SWITCH.
Based on this, in the shared HBA card mode, when the target controller fails, a new controller number is determined; and sending the access forwarding data to the controller corresponding to the new controller number according to the new controller number. The speed of fast switching access controllers is achieved.
Therefore, in the embodiment, the target controller is determined from the multiple controllers when the HBA card transmits the access forwarding data, and then the data is transmitted, instead of only specifying a single controller, so that the reliability of accessing the storage controller is improved.
In the following, a memory controller access apparatus provided in an embodiment of the present application is described, and a memory controller access apparatus described below and a memory controller access method described above may be referred to correspondingly.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a memory controller access device according to an embodiment of the present disclosure.
In this embodiment, the apparatus may include:
a request processing module 100, configured to process the received access request to obtain access forwarding data;
a target controller determining module 200, configured to determine a target controller from the multiple controllers according to a preset controller number; wherein, a plurality of controllers are connected with the HBA card;
and a data sending module 300, configured to send the access forwarding data to the target controller.
An embodiment of the present application further provides a server, including:
a memory for storing a computer program;
a processor for implementing the steps of the storage controller access method as described in the above embodiments when executing the computer program.
Embodiments of the present application further provide 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 steps of the storage controller access method according to the above embodiments are implemented.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
A storage controller access method, a storage controller access apparatus, a server and a computer-readable storage medium provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A storage controller access method, comprising:
the HBA card processes the received access request to obtain access forwarding data;
determining a target controller from the plurality of controllers according to a preset controller number; wherein the plurality of controllers are each connected to the HBA card;
and sending the access forwarding data to the target controller.
2. The storage controller access method of claim 1, wherein sending the access forwarding data to the target controller comprises:
the HBA card sends the access forwarding data to the target controller through the PCIE SWITCH chip.
3. The memory controller access method of claim 2, wherein the PCIE SWITCH chip is a PCIE SWITCH chip with a Multihost function.
4. The memory controller access method of claim 2, wherein the PCIE SWITCH chip is a PCIE SWITCH chip with a partition function.
5. The storage controller access method of claim 1, further comprising:
when the target controller fails, determining a new controller number;
and sending the access forwarding data to the controller corresponding to the new controller number according to the new controller number.
6. The storage controller access method of claim 5, wherein determining a new controller number when the target controller fails comprises:
and when the target controller fails, determining the new controller number according to the controller state.
7. The storage controller access method of claim 5, wherein determining a new controller number when the target controller fails comprises:
and when the target controller fails, determining the new controller number according to the data transmission performance.
8. A storage controller access device, comprising:
the request processing module is used for processing the received access request to obtain access forwarding data;
the target controller determining module is used for determining a target controller from the plurality of controllers according to a preset controller number; wherein the plurality of controllers are each connected to the HBA card;
and the data sending module is used for sending the access forwarding data to the target controller.
9. A server, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the storage controller access method of any of claims 1 to 7 when executing said computer program.
10. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the storage controller access method according to any one of claims 1 to 7.
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| CN202011343128.XA CN112463670A (en) | 2020-11-25 | 2020-11-25 | Storage controller access method and related device |
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Cited By (1)
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Application publication date: 20210309 |