CN106302598A - Transmission method for optimizing route and system - Google Patents
Transmission method for optimizing route and system Download PDFInfo
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- CN106302598A CN106302598A CN201510298679.1A CN201510298679A CN106302598A CN 106302598 A CN106302598 A CN 106302598A CN 201510298679 A CN201510298679 A CN 201510298679A CN 106302598 A CN106302598 A CN 106302598A
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- read
- virtual disk
- storage device
- configuration file
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
Abstract
A kind of transmission method for optimizing route, described method includes step: storage device downloads the read-write configuration file that each virtual disk is corresponding from SDN server；The transmission path that main frame consists of one or more switches is connected to storage device, to access described virtual disk；Storage device analyzes the iSCSI package from main frame transmission to described virtual disk, calculates the related read-write data of described virtual disk, and judges whether to need change read-write configuration file, the most then notice SDN server changes；SDN server notice SDN controller according to change after read-write configuration file optimization from the transmission path of main frame to described virtual disk.The present invention also provides for a kind of transmission path optimizing system.The present invention can optimize the transmission path in iSCSI SAN network framework between main frame to storage device.
Description
Technical field
The present invention relates to storage area network technology, especially relate to a kind of transmission method for optimizing route and system.
Background technology
For effectively using storage resource and being easy to unified management, storage area network (Storage Area Network, SAN) becomes the main flow of enterprise's storage architecture already.And the with high costs and problem of palpus concrete management technology existed in view of previous fiber channel SAN, SAN environment is built by based on existing IP and Ethernet, in the hope of reducing the importing cost of SAN, extension SAN range of application, become as one of hot technology topic storing boundary over the years.All with IP and Ethernet in the SAN technology as bottom, Internet small computer system interface (Internet Small
Computer System Interface, iSCSI) full-fledged because of it, and the advantage that support manufacturer is numerous, rapidly become the main flow of current IP/ Ethernet SAN technology.Member in iSCSI SAN includes originating end (Initiator) and destination end (Target) two class, and the former is the client device sending access requirement, it is common that the client computer main frame on network；The latter is then to provide the equipment of access service, namely storage device.
But, traditional iSCSI SAN network framework cannot dynamically adjust the transmission path between originating end to destination end.Such as, three main frames are had to be connected to LAN via identical switch, and through virtual disks different in iSCSI protocol access storage device.Under traditional network architecture, these three the iSCSI data flow transmission routes between main frame and storage device are fixing.But, different main frames (or same main frame is in different time points) may be entirely different to the demand of the network bandwidth, and transmission path can not be adjusted in real time by existing technology according to current network bandwidth requirements, it is impossible to effectively uses Internet resources.
Summary of the invention
In view of the foregoing, it is necessary to one transmission method for optimizing route is provided, the transmission path between main frame to storage device in iSCSI SAN network framework can be optimized.
In view of the foregoing, there is a need to provide a kind of transmission path optimizing system, the transmission path between main frame to storage device in iSCSI SAN network framework can be optimized.
Described transmission method for optimizing route includes step: storage device downloads the read-write configuration file that in described storage device, each virtual disk is corresponding from SDN server；The transmission path that main frame consists of one or more switches is connected to described storage device, to access described virtual disk；Described storage device analysis to the iSCSI package of described virtual disk, calculates the related read-write data of described virtual disk from the transmission of described main frame；According to analysis result, described storage device judges that described virtual disk the need of change read-write configuration file, the most then notifies that described SDN server changes the read-write configuration file that described virtual disk is corresponding；And described SDN server notice SDN controller according to the read-write configuration file optimization after change from the transmission path of described main frame to described virtual disk.
Described transmission path optimizing system includes at least one main frame, switch, storage device, SDN server and SDN controller, and described storage device is for downloading the read-write configuration file that each virtual disk in described storage device is corresponding from described SDN server；The transmission path that described main frame consists of one or more switches is connected to described storage device, to access described virtual disk；Described storage device is for analyzing the iSCSI package from described main frame transmission to described virtual disk, calculate the related read-write data of described virtual disk, and judge that described virtual disk the need of change read-write configuration file, the most then notifies that described SDN server changes the read-write configuration file that described virtual disk is corresponding according to analysis result；And described SDN server for notify described SDN controller according to the read-write configuration file optimization after change from the transmission path of described main frame to described virtual disk.
Compared to prior art, described transmission method for optimizing route and system, the read-write state that virtual disk is current can be analyzed according to the iSCSI package of main frame transmission to virtual disk, to judge whether to need change read-write configuration file, and dynamically adjust corresponding data flow transmission route, to the readwrite performance demand of virtual disk and make Internet resources more effectively be employed meeting main frame.
Accompanying drawing explanation
Fig. 1 is the Organization Chart that the present invention transmits path optimizing system preferred embodiment.
Fig. 2 is the schematic diagram transmitting path in the present invention.
It is that the cumulative cost that in Fig. 2, each transmission path is corresponding reads and writes configuration file with associating shown in Fig. 3.
Fig. 4 is the flow chart that the present invention transmits method for optimizing route preferred embodiment.
Main element symbol description
| Transmission path optimizing system | 2 |
| Main frame | 10、H1 |
| Switch | 20、G0~G3、XG0~XG3 |
| Storage device | 30、S1 |
| SDN server | 40 |
| SDN controller | 50 |
| Virtual disk | 32 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refering to shown in Fig. 1, it it is the present invention Organization Chart that transmits path optimizing system preferred embodiment.In the present embodiment, transmission path optimizing system 2 includes at least one main frame 10, switch 20, storage device 30, software defined network (Software Defined
Networking, SDN) server 40 and SDN controller 50 etc. (element number shown in Fig. 1 is only and represents).Storage device 30 includes multiple virtual disk 32.
SDN server 40 is each virtual disk 32 configuration read-write configuration file (I/O profile) of storage device 30.Storage device 30 connects SDN server 40, after checking, downloads the I/O profile of each virtual disk 32 correspondence from SDN server 40.Described I/O
Profile is by the Profile Manager (Profile in storage device 30
Not shown in Manager, Fig. 1) it is managed, Profile Manager periodically downloads up-to-date I/O profile from SDN server 40.
The transmission path that main frame 10 consists of one or more switches 20 is connected to storage device 30, to access the virtual disk 32 of storage device 30.Such as, Fig. 2 show from main frame H1It is connected to storage device S1Various transmission paths.Wherein, main frame H1It is connected to switch G0, storage device S1It is connected to switch XG3, switch G0With switch XG3Between via switch G1、G2、G3、XG0、XG1、XG2In one or more, one has 7 kinds of different transmission paths.
Storage device 30 is analyzed and is transmitted the iSCSI package to virtual disk 32 from main frame 10, calculates the relevant I/O data of this virtual disk 32.In the present embodiment, described I/O data are handling capacity (Throughput) and the number of times (Input/Output Operations Per Second, IOPS) being written and read operation per second.Storage device 30 checks whether the scsi command in iSCSI package is I/O order, if then adding up I/O command number and I/O data volume, thus is calculated the numerical value of described Throughput and IOPS.
Then, according to analysis result, storage device 30 judges that this virtual disk 32 is the need of change I/O profile.Each I/O
Throughput and the IOPS numerical range of different I/O ranks (high, medium and low) defined in profile.In the present embodiment, the I/O data in I/O profile good with this virtual disk 32 configured in advance for the I/O data calculated are compared by storage device 30 at predetermined time intervals (such as the t second), find out the I/O profile matched with this virtual disk 32.If this I/O matched
The I/O that profile and this virtual disk 32 use at present
Profile is different, then storage device 30 judges that this virtual disk 32 needs to change I/O profile.
When judging that this virtual disk 32 needs to change I/O profile, storage device 30 notifies that SDN server 40 changes the I/O profile of this virtual disk 32 correspondence, will be changed to this I/O matched by the I/O profile that uses at present of this virtual disk 32
profile。
SDN server 40 notifies that SDN controller 50 optimizes from the transmission path of main frame 10 to this virtual disk 32 according to the I/O profile after change.First SDN controller 50 finds out all possible transmission path from main frame 10 to this virtual disk 32, calculates the metric (Metric) in each transmission path the most respectively.In the present embodiment, Link State (Link State) Routing Protocol can be used to calculate the metric in each transmission path.Conventional link-state routing protocol includes ospf (Open
Shortest Path First, OSPF) and reinforced IGRP (Enhanced Interior Gateway Routing Protocol, EIGRP).For example, OSPF uses link cost as metric, if the speed of network segment is the fastest, bandwidth is the biggest, and the link cost calculated is the least.SDN controller 50 determines the I/O after this change according to considerations such as each transmission path in path, metric and load balancing
The transmission path that profile should use.
Such as, switch G in Fig. 20~G3For GbE switch, XG0~XG3For 10GbE switch, the link cost of GbE switch is 10, and the link cost of 10GbE switch is 1.Refering to shown in Fig. 3, transmit cumulative cost corresponding to path for each in Fig. 2 and associate I/O
profile.As transmitted path G0-XG0-XG1-XG2-XG3Corresponding cumulative cost is 10+1+1+1=13, the I/O of association
Profile is Profile 7,8,9.SDN controller 50, according to the result of calculation in Fig. 3, can be judged from main frame H1To storage device S1The transmission path of optimization.
After SDN controller 50 is optimized, the iSCSI package that main frame 10 sends via the transmission path after this optimization to storage device 30.
Refering to shown in Fig. 4, it it is the present invention flow chart that transmits method for optimizing route preferred embodiment.
Step S10, storage device 30 connects SDN server 40, after checking, downloads the I/O profile of each virtual disk 32 correspondence from SDN server 40.
Step S12, the transmission path that main frame 10 consists of one or more switches 20 is connected to storage device 30, to access the virtual disk 32 of storage device 30.
Step S14, storage device 30 is analyzed and is transmitted the iSCSI package to virtual disk 32 from main frame 10, calculates the relevant I/O data of this virtual disk 32.In the present embodiment, described I/O data are Throughput and IOPS.Storage device 30 checks whether the scsi command in iSCSI package is I/O order, if then adding up I/O command number and I/O data volume, thus is calculated the numerical value of described Throughput and IOPS.
Step S16, according to analysis result, storage device 30 judges that this virtual disk 32 is the need of change I/O profile.Throughput and the IOPS numerical range of different I/O ranks defined in each I/O profile.In the present embodiment, the I/O data in I/O profile good with this virtual disk 32 configured in advance for the I/O data calculated are compared by storage device 30 at predetermined time intervals, find out the I/O profile matched with this virtual disk 32.If this I/O matched
The I/O that profile and this virtual disk 32 use at present
Profile is different, then storage device 30 judges that this virtual disk 32 needs to change I/O profile.When judging that this virtual disk 32 needs to change I/O profile, perform step S18.When judging that this virtual disk 32 need not change I/O profile, return step S14.
Step S18, storage device 30 notifies that SDN server 40 changes the I/O profile of this virtual disk 32 correspondence, will be changed to this I/O profile matched by the I/O profile that uses at present of this virtual disk 32.
Step S20, SDN server 40 notifies that SDN controller 50 optimizes from the transmission path of main frame 10 to this virtual disk 32 according to the I/O profile after change.First SDN controller 50 finds out all possible transmission path from main frame 10 to this virtual disk 32, calculates the metric in each transmission path the most respectively.In the present embodiment, link-state routing protocol can be used to calculate the metric in each transmission path.Conventional link-state routing protocol includes OSPF and EIGRP.For example, OSPF uses link cost as metric, if the speed of network segment is the fastest, bandwidth is the biggest, and the link cost calculated is the least.SDN controller 50 determines the I/O after this change according to considerations such as each transmission path in path, metric and load balancing
The transmission path that profile should use.
Step S22, the iSCSI package that main frame 10 sends via the transmission path after this optimization to storage device 30.
Above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a transmission method for optimizing route, for optimizing in Internet small computer system interface iSCSI storage area network framework the transmission path between main frame to storage device, it is characterised in that the method comprising the steps of:
Described storage device downloads the read-write configuration file that each virtual disk in described storage device is corresponding from software defined network SDN server；
The transmission path that described main frame consists of one or more switches is connected to described storage device, to access described virtual disk；
Described storage device analysis to the iSCSI package of described virtual disk, calculates the related read-write data of described virtual disk from the transmission of described main frame；
According to analysis result, described storage device judges that described virtual disk the need of change read-write configuration file, the most then notifies that described SDN server changes the read-write configuration file that described virtual disk is corresponding；And
Described SDN server notice SDN controller according to change after read-write configuration file optimization from the transmission path of described main frame to described virtual disk.
Transmit method for optimizing route the most as claimed in claim 1, it is characterized in that, described read-write data are handling capacity and the number of times being written and read operation per second, whether described storage device is read write command by checking the scsi command in described iSCSI package, if then read write command number and read-write data volume being added up, thus it is calculated described handling capacity and the numerical value of the number of times being written and read operation per second.
Transmit method for optimizing route the most as claimed in claim 1, it is characterised in that according to analysis result, described storage device judges that described virtual disk also includes the need of the step of change read-write configuration file:
The read-write data calculated are compared by described storage device at predetermined time intervals with the read-write data in the read-write configuration file of described virtual disk configured in advance, find out the read-write configuration file matched with described virtual disk；And
If the read-write configuration file matched described in is different from the read-write configuration file that described virtual disk uses at present, and the most described storage device judges that described virtual disk needs change read-write configuration file.
Transmit method for optimizing route the most as claimed in claim 1, it is characterised in that described SDN controller also includes from the step in the transmission path of described main frame to described virtual disk according to the read-write configuration file optimization after change:
The all transmission paths from described main frame to described virtual disk found out by described SDN controller；
Described SDN controller calculates the metric in each transmission path respectively；And
Described SDN controller transmits, according to each, the transmission path that the read-write configuration file after the path in path, metric and load balancing determine this change should use.
Transmit method for optimizing route the most as claimed in claim 4, it is characterised in that described metric is the accumulation link cost in each transmission path calculated according to link-state routing protocol.
6. a transmission path optimizing system, it is applied in Internet small computer system interface iSCSI storage area network framework, this system includes at least one main frame, switch, storage device, software defined network SDN server and SDN controller, it is characterised in that；
Described storage device is for downloading the read-write configuration file that each virtual disk in described storage device is corresponding from described SDN server；
The transmission path that described main frame consists of one or more switches is connected to described storage device, to access described virtual disk；
Described storage device is for analyzing the iSCSI package from described main frame transmission to described virtual disk, calculate the related read-write data of described virtual disk, and judge that described virtual disk the need of change read-write configuration file, the most then notifies that described SDN server changes the read-write configuration file that described virtual disk is corresponding according to analysis result；And
Described SDN server for notify described SDN controller according to change after read-write configuration file optimization from the transmission path of described main frame to described virtual disk.
Transmit path optimizing system the most as claimed in claim 6, it is characterized in that, described read-write data are handling capacity and the number of times being written and read operation per second, whether described storage device is read write command by checking the scsi command in described iSCSI package, if then read write command number and read-write data volume being added up, thus it is calculated described handling capacity and the numerical value of the number of times being written and read operation per second.
Transmit path optimizing system the most as claimed in claim 6, it is characterized in that, described storage device is additionally operable to the read-write data calculated be compared with the read-write data in the read-write configuration file of described virtual disk configured in advance at predetermined time intervals, finds out the read-write configuration file matched with described virtual disk；
If the read-write configuration file matched described in is different from the read-write configuration file that described virtual disk uses at present, and the most described storage device judges that described virtual disk needs change read-write configuration file.
Transmit path optimizing system the most as claimed in claim 6, it is characterized in that, described SDN controller is for finding out all transmission paths from described main frame to described virtual disk, calculate the metric in each transmission path respectively, and transmit, according to each, the transmission path that the read-write configuration file after the path in path, metric and load balancing determine this change should use.
Transmit path optimizing system the most as claimed in claim 9, it is characterised in that described metric is the accumulation link cost in each transmission path calculated according to link-state routing protocol.
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| CN201510298679.1A CN106302598B (en) | 2015-06-03 | 2015-06-03 | Transmission path optimization method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111147538A (en) * | 2018-11-06 | 2020-05-12 | 南宁富桂精密工业有限公司 | Service function chain path selection method and system |
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| US20030101239A1 (en) * | 2001-11-27 | 2003-05-29 | Takeshi Ishizaki | Storage device with VLAN support |
| CN1554055A (en) * | 2001-07-23 | 2004-12-08 | �Ƚ�װ�ù�˾ | High-availability cluster virtual server system |
| US20050114464A1 (en) * | 2003-10-27 | 2005-05-26 | Shai Amir | Virtualization switch and method for performing virtualization in the data-path |
| CN1633131A (en) * | 2005-01-14 | 2005-06-29 | 清华大学 | A method for implementing iSCSI memory system |
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2015
- 2015-06-03 CN CN201510298679.1A patent/CN106302598B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554055A (en) * | 2001-07-23 | 2004-12-08 | �Ƚ�װ�ù�˾ | High-availability cluster virtual server system |
| US20030101239A1 (en) * | 2001-11-27 | 2003-05-29 | Takeshi Ishizaki | Storage device with VLAN support |
| US20050114464A1 (en) * | 2003-10-27 | 2005-05-26 | Shai Amir | Virtualization switch and method for performing virtualization in the data-path |
| CN1633131A (en) * | 2005-01-14 | 2005-06-29 | 清华大学 | A method for implementing iSCSI memory system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111147538A (en) * | 2018-11-06 | 2020-05-12 | 南宁富桂精密工业有限公司 | Service function chain path selection method and system |
| CN111147538B (en) * | 2018-11-06 | 2022-03-25 | 南宁富桂精密工业有限公司 | Service function chain path selection method and system |
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