CN103164168A - System and method for adjusting redundant array of independent disk card connected with serial attached small computer system interface (SAS) expander - Google Patents

Abstract

A system and method for adjusting a SAS expander connected to a disk array card, the method comprising dividing the disk array RAID card into multiple types, and creating corresponding adjustment information for each type of RAID card according to the configuration parameters of the SAS expander; When a RAID card is newly connected to the SAS expander, read the information of the RAID card; judge whether the RAID card matches the SAS expander; corresponding adjustment information, and write the adjustment information and the information of the RAID card in a new firmware; store the new firmware in the flash memory chip of the SAS expander, update the firmware in the SAS expander, so that the RAID Cards mate with SAS expanders. The invention can freely change the connection between the RAID card and the SAS expander.

Description

System and method for adjusting SAS expander to connect to disk array card

technical field

The invention relates to a system and method for adjusting a SAS expander connected to a disk array card.

Background technique

At present, the Redundant Array 0f Independent Disk (RAID) card, that is, the disk array card, (hereinafter referred to as the RAID card) connects the small electronic device system interface expander serially through the SAS expander (Serial Attached Small Computer System Interface Expander) , hereinafter referred to as SAS expander) can connect multiple expansion devices, such as HDD (Hard Disk Drive, hard disk drive) or other SAS expanders. The first option is to adjust the firmware of the SAS expander according to the properties or types of the RAID card. After the firmware is set, the RAID card connected to the SAS expander cannot be replaced at will. If you directly replace the RAID card and connect it to the SAS expander, information about the expansion device connected to the SAS expander may be confused or lost.

Contents of the invention

In view of the above, it is necessary to provide a system and method for adjusting the connection of a SAS expander to a disk array card, which can automatically adjust the relevant information of the SAS expander according to the information of the RAID card, so that the SAS expander can freely replace the connected RAID card.

A method for adjusting a SAS expander to connect to a disk array card, which is applied to an electronic device including a SAS expander, the method includes the steps of: dividing the disk array RAID card into multiple types, and according to the configuration parameters of the SAS expander as Various types of RAID cards create corresponding adjustment information, and store the adjustment information in the storage device of the electronic device; the first reading step: when a RAID card is newly connected to the SAS expander, read the new information related to the SAS expander. Information of the connected RAID card; judging step: according to the information of the RAID card, judge whether the RAID card matches the SAS expander; the second reading step: when the RAID card does not match the SAS expander, according to the information of the RAID card The type of the RAID card corresponding to the information, read the adjustment information corresponding to the RAID card from the storage device, and write the adjustment information and the information of the RAID card into a new firmware; matching step: the new firmware The firmware is stored in the flash memory chip of the SAS expander, and the firmware in the SAS expander is updated so that the RAID card matches the SAS expander.

A system for adjusting a SAS expander to connect to a disk array card, running in an electronic device including a SAS expander, the system includes: a building module for dividing the disk array RAID card into multiple types, and according to the SAS expander The configuration parameters create corresponding adjustment information for various types of RAID cards, and store the adjustment information in the storage device of the electronic device; the first reading module is used for when the RAID card is newly connected to the SAS expander, Read the information of the newly connected RAID card with the SAS expander; the judging module is used to judge whether the RAID card matches the SAS expander according to the information of the RAID card; the second reading module is used for when the RAID card and the SAS When the expander does not match, read the adjustment information corresponding to the RAID card from the storage device according to the type of RAID card corresponding to the information of the RAID card, and write the adjustment information and the information of the RAID card into a new In the firmware; the matching module is used to store the new firmware in the flash memory chip of the SAS expander, and update the firmware in the SAS expander so that the RAID card matches the SAS expander.

Compared with the prior art, the system and method for adjusting the SAS expander connected to the disk array card provided by the present invention can judge whether it matches the SAS expander by reading the information of the RAID card connected to the SAS expander, and in the RAID When the card does not match the SAS, the relevant information of the SAS expander will be automatically adjusted according to the information of the RAID card, so that the SAS expander can freely replace the connected RAID card without restriction.

Description of drawings

FIG. 1 is a schematic view of the operating environment of a preferred embodiment of the system for adjusting a SAS expander connected to a disk array card according to the present invention.

Fig. 2 is a functional block diagram of a preferred embodiment of the system for adjusting the connection of the SAS expander to the disk array card of the present invention.

FIG. 3 is a functional module diagram of a preferred embodiment of a method for adjusting a SAS expander connected to a disk array card in the present invention.

Description of main component symbols

electronic device 1 Processor 10 Adjust the system 20 storage device 30 RAID card 40 SAS expander 50 build module 200 The first read module 202 Judgment module 204 The second reading module 206 match module 208

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

As shown in FIG. 1 , it is a structure diagram of a preferred embodiment of a system for adjusting a SAS expander connected to a disk array card in the present invention. The system 20 for adjusting the connection of the SAS expander to the disk array card (hereinafter referred to as the “adjustment system 20 ”) runs in the electronic device 1 . The electronic device 1 includes a processor 10 , a storage device 30 , a RAID card 40 and a SAS expander 50 . The processor 10 is used for processing data and instructions of the electronic device 1 . The storage device 30 is used for storing data of the electronic device 1 .

The processor 10 is connected with the RAID card 40 and the SAS expander 50 . The RAID card 40 can be connected to the SAS expander 50 through a SAS port (not shown in the figure). The SAS expander 50 can be connected to one or more hardware devices (not shown in the figure), for example, HDD (Hard Disk Drive, hard disk drive) and the like.

Described RAID card 40 is used for managing the hard disk drive that is connected to SAS expander 50, and the RAID function supported by different RAID cards 40 is different, promptly supports different RAID levels, and this RAID level comprises RAID 0, RAID 1, RAID 3 , RAID 4, RAID 5, RAID 10, RAID 50, and RAID 60, etc. A firmware (firmware) is stored in the flash memory chip of the SAS expander 50, and the configuration parameters of the SAS expander 50 are stored in the firmware, including the configuration information of the physical layer (Physical Layer, PHY) of the SAS expander 50 , the address information of the SAS expander 50, the connection information of the SAS expander 50 physical layer, etc. In this preferred embodiment, after the SAS expander 50 is correctly connected to a RAID card 40, the connected Related parameters of the RAID card 40, for example, the RAID level supported by the card, and the like. The firmware is a software embedded in the SAS expander, and the firmware can be updated and upgraded.

As shown in FIG. 2 , it is a functional block diagram of a preferred embodiment of the system for adjusting a SAS expander connected to a disk array card in the present invention. The adjustment system 20 includes an establishment module 200 , a first reading module 202 , a judging module 204 , a second reading module 206 and a matching module 208 . All the above modules are installed in the storage device 30 of the electronic device 1 or solidified in the operating system of the electronic device 1 in the form of software programs or instructions, and are executed by the processor 10 of the electronic device 1 . The module referred to in the present invention is a program segment that completes a specific function, and is more suitable for describing the execution process of software in the electronic device 1 than a program. Each functional module will be described in detail below in conjunction with the flow chart of FIG. 3 .

As shown in FIG. 3 , it is a flowchart of a preferred embodiment of a method for adjusting a SAS expander connected to a disk array card in the present invention.

Step S110, the establishment module 200 is used to divide the RAID card 40 into multiple types according to the different RAID levels supported by the RAID card 40, and create corresponding RAID cards 40 for each type according to the configuration parameters of the SAS expander 50. and store the adjustment information in the storage device 30. The adjustment information corresponding to each type of RAID card includes the RAID level supported by the type of RAID card 40 and the configuration parameters of the SAS expander 50 adjusted for the type of RAID card 40 . For example, according to the different RAID levels supported by the RAID card 40, the RAID card 40 can be divided into IRRAID that only supports RAID 0 and RAID 1, IT RAID that does not support RAID 0 and RAID 1, and supports RAID0, RAID 1, RAID 5, RAID 5, RAID6, RAID 50 and RAID 60 MEGARAID and other types. Users can classify the types of RAID cards according to the actual situation and personal preference.

Step S111, when a RAID card 40 is newly connected to the SAS expander 50, for example, when the RAID card 40 is replaced, the first reading module 202 reads the newly connected RAID card with the SAS expander 50 through the processor 10 The information of 40 includes the RAID level supported by the RAID card 40 .

Step S112 , the judging module 204 judges whether the RAID card 40 matches the SAS expander 50 . The judging module 204 judges whether the level supported by the RAID card 40 is consistent with the supported RAID level recorded in the firmware of the flash memory chip in the SAS expander 50 . When the RAID level supported by the RAID card 40 is consistent with the RAID level supported in the SAS expander 50 firmware, the judgment module 204 judges that the RAID card 40 matches the SAS expander 50, and the process ends; When the RAID level is inconsistent with the RAID level supported by the firmware of the SAS expander 50, the judging module 204 judges that the RAID card 40 does not match the SAS expander 50, and enters step S113.

Step S113, according to the type corresponding to the RAID card level supported by the RAID card 40, the second reading module 206 reads the adjustment information corresponding to the RAID card 40 from the storage device 30, and stores the adjustment information The information related to the RAID card 40 is written in a new firmware.

Step S114, the matching module 208 stores the new firmware in the flash chip of the SAS expander 50, and updates the firmware in the SAS expander 50, so that the RAID card 40 matches the SAS expander.

It should be noted that after the firmware in the SAS expander 50 is updated, it needs to be restarted before it can be used normally.

In addition, if the SAS expander 50 has not been connected to the RAID card 40 before, when a RAID card 40 is connected to the SAS expander 50, the SAS expander 50 does not record the type of the RAID card 40 and the supported RAID level. Therefore, it is also judged that the SAS expander 50 does not match the RAID card 40 at this time, and the firmware in the SAS expander 50 needs to be updated.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be The scheme shall be modified or equivalently replaced without departing from the spirit and scope of the technical scheme of the present invention.

Claims (8)

1. A method for adjusting a SAS expander to connect a disk array card, applied in an electronic device, is characterized in that the method comprises: Establishing steps: dividing the disk array RAID card into multiple types, and creating corresponding adjustment information for each type of RAID card according to the configuration parameters of the SAS expander, and storing the adjustment information in the storage device of the electronic device; The first reading step: when a RAID card is newly connected to the SAS expander, read the information of the RAID card newly connected to the SAS expander; Judgment step: According to the information of the RAID card, judge whether the RAID card matches the SAS expander; The second reading step: when the RAID card does not match the SAS expander, read the adjustment information corresponding to the RAID card from the storage device according to the type of the RAID card corresponding to the information of the RAID card, and store the Write the adjustment information and the information of the RAID card into a new firmware; Matching step: storing the new firmware in the flash memory chip of the SAS expander, updating the firmware in the SAS expander, so that the RAID card matches the SAS expander. 2. The method for adjusting a SAS expander connected to a disk array card as claimed in claim 1, wherein said establishing step is to classify the RAID cards according to the different RAID levels supported by the RAID cards. 3. The method for adjusting a SAS expander connected to a disk array card as claimed in claim 2, wherein the adjustment information corresponding to the various types of RAID cards includes the RAID level supported by the type of RAID card, and for the The configuration parameters of the SAS expander adjusted by the type of RAID card. 4. the method for adjusting SAS expander to connect disk array card as claimed in claim 2, is characterized in that, described judging step is by judging the RAID level that this RAID card supports and the firmware record in SAS expander flash memory chip Check whether the supported RAID level is the same to determine whether the RAID card matches the SAS expander. 5. A system for adjusting a SAS expander to connect a disk array card, applied in an electronic device, is characterized in that the system includes: Establishing a module for dividing the disk array RAID card into multiple types, and creating corresponding adjustment information for each type of RAID card according to the configuration parameters of the SAS expander, and storing the adjustment information in the storage of the electronic device device; The first reading module is used to read the information of the RAID card newly connected to the SAS expander when the RAID card is newly connected to the SAS expander; Judging module, used for judging whether the RAID card matches the SAS expander according to the information of the RAID card; The second reading module is used to read the adjustment information corresponding to the RAID card from the storage device according to the type of the RAID card corresponding to the information of the RAID card when the RAID card does not match the SAS expander, and Write the adjustment information and the information of the RAID card into a new firmware; The matching module is configured to store the new firmware in the flash memory chip of the SAS expander, and update the firmware in the SAS expander so that the RAID card matches the SAS expander. 6. The system for adjusting a SAS expander connected to a disk array card as claimed in claim 5, wherein said building module classifies the RAID cards according to the different RAID levels supported by the RAID cards. 7. The system for adjusting a SAS expander connected to a disk array card as claimed in claim 6, wherein the adjustment information corresponding to each type of RAID card includes the RAID level supported by the type of RAID card, and the corresponding adjustment information for the type of RAID card. The configuration parameters of the SAS expander adjusted by the type of RAID card. 8. the adjustment SAS expander as claimed in claim 6 connects the system of disk array card, it is characterized in that, described judging module is by judging the RAID level that this RAID card supports and the firmware of flash chip in the SAS expander Check whether the supported RAID levels recorded are consistent to determine whether the RAID card matches the SAS expander.

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