CN104932922A - Method and device for regulating boot sequence of SAS (Serial Attached SCSI) card hard disk - Google Patents

Abstract

The present invention provides a method and device for adjusting the startup sequence of hard disks with SAS cards. The method includes: predetermining the first hard disks with SAS cards to be started first; determining all hard disks with SAS cards, and obtaining the index value SASIndex of all hard disks with SAS cards; Traverse all the boot device options BootOption, determine the BootOption corresponding to each SASIndex; determine the BootOption corresponding to each SAS card hard disk according to the SAS card hard disk corresponding to each SASIndex and the BootOption corresponding to each SASIndex; For the SAS card hard disk first, determine the value of Priority in the BootOption corresponding to all SAS card hard disks. The startup sequence of the SAS card hard disk can be adjusted through the method and device for adjusting the startup sequence of the SAS card hard disk provided by the present invention.

Description

A method and device for adjusting the startup sequence of a SAS card hard disk

technical field

The invention relates to the technical field of computers, in particular to a method and a device for adjusting the startup sequence of a SAS card hard disk.

Background technique

SAS (Serial Attached SCSI, Serial Attached SCSI) is a new generation of SCSI technology, which is the same as the popular SATA (Serial Advanced Technology Attachment, Serial Advanced Technology Attachment) hard disk, all of which use serial technology to obtain higher transmission speed, and improved internal space by shortening the connecting lines, etc. SAS is a new interface developed after the parallel SCSI interface. This interface is designed to improve the performance, usability and expandability of the storage system and provide compatibility with Serial ATA hard disks. As a new storage interface technology, SAS is not only comparable to FibreChannel in function, but also compatible with SATA, so it is recognized by the industry as the best choice to replace parallel SCSI. The advantages of SAS are mainly reflected in: flexibility, compatible with SATA, saving investment for users; scalability, a SAS domain can directly connect up to 16384 devices. Based on the above advantages of SAS interface technology, SAS cards are widely used in the server field. SAS cards manage and connect hard disks through the backplane to provide high-capacity storage devices for server systems.

Generally speaking, a SAS card will be equipped with multiple hard disks. According to usage habits, the operating system is generally installed on the first hard disk that is physically connected. In the application process of some SAS cards, when multiple hard disks are used, the boot sequence of the hard disks cannot be guaranteed to be consistent with the physical connection sequence of the hard disks. For example, assuming that the operating system is installed on the first hard disk in the physical connection sequence, the startup sequence of the hard disk may change when the next startup is performed, and the first hard disk to start may not be the first hard disk in the physical connection. hard disk, it is impossible to ensure that the hard disk startup sequence is consistent with the physical connection sequence of the hard disk, resulting in the inability to start the operating system. In the prior art, the startup sequence of the SAS card hard disk cannot be adjusted.

Contents of the invention

In view of this, the present invention provides a method and device for adjusting the startup sequence of the SAS card hard disk, which can adjust the startup sequence of the SAS card hard disk.

On the one hand, the present invention provides a method for adjusting the startup sequence of the SAS card hard disk, including: predetermining the first SAS card hard disk to be started first, and further including:

S1: Determine all SAS card hard disks, and obtain the index value SASIndex of all SAS card hard disks;

S2: traverse all the boot device options BootOption, and determine the BootOption corresponding to each SASIndex;

S3: According to the SAS card hard disk corresponding to each SASIndex and the BootOption corresponding to each SASIndex, determine the BootOption corresponding to each SAS card hard disk;

S4: Determine the values of Priority in the BootOption corresponding to all the SAS card hard disks according to the determined first SAS card hard disk.

Further, in the S1, the determination of all SAS card hard disks includes:

Query the boot device option list BBS Table in the basic input and output system BIOS to determine the identification information of all boot devices in the BBS Table, wherein the identification information includes: bus BUS serial number, equipment DEV serial number, function FUN serial number one or more;

According to the identification information of the current boot device, access the current boot device, and obtain the type information of the current boot device, wherein the type information includes: type Class, subtype SubClass;

According to the type information of each boot device, determine all the hard disks of the SAS card in the boot device.

Further, after the S3, it also includes:

Obtain the Priority in the BootOption corresponding to each SAS card hard disk, and sort all the Priority values in order of size;

The S4, including:

According to the first SAS card hard disk and all Priority values after the sorting, assign values to the Priority in the BootOption corresponding to all the SAS card hard disks.

Further, said S1 includes: traversing the BBS Table in the BIOS, and obtaining the SASIndex of all SAS card hard disks from the BBS Table;

and / or,

In the S2, the determination of the BootOption corresponding to each SASIndex includes: judging whether the current SASIndex is equal to the BBSIndex in the current BootOption, if yes, then determining that the current SASIndex corresponds to the current BootOption, otherwise, determining the current SASIndex and the current BootOption Does not correspond.

Further, it also includes: obtaining the physical connection sequence of all SAS card hard disks;

The S4 includes: according to the physical connection sequence and the determined first hard disk of the SAS card, determining the value of Priority in the BootOption corresponding to all the hard disks of the SAS card.

On the other hand, the present invention provides a kind of device that adjusts the startup sequence of SAS card hard disk, comprising:

The first determination unit is used to determine the earliest SAS card hard disk that starts first;

The first obtaining unit is used to determine all SAS card hard disks, and obtain the index value SASIndex of all SAS card hard disks;

The second determination unit is used to traverse all boot device options BootOption and determine the BootOption corresponding to each SASIndex;

The third determining unit is used to determine the BootOption corresponding to each SAS card hard disk according to the SAS card hard disk corresponding to each SASIndex and the BootOption corresponding to each SASIndex;

The fourth determination unit is configured to determine the value of Priority in the BootOption corresponding to all the SAS card hard disks according to the determined first SAS card hard disk.

Further, the first acquisition unit includes:

The query unit is used to query the boot device option list BBS Table in the basic input and output system BIOS, and determine the identification information of all boot devices in the BBS Table, wherein the identification information includes: bus BUS serial number, equipment DEV serial number, One or more of the function FUN serial numbers;

The second acquisition unit is configured to access the current boot device according to the identification information of the current boot device, and acquire type information of the current boot device, wherein the type information includes: type Class, subtype SubClass;

The fifth determining unit is configured to determine all SAS card hard disks in the boot device according to the type information of each boot device.

Further, it also includes:

The third obtaining unit is used to obtain the Priority in the BootOption corresponding to each SAS card hard disk, and sort all the Priority values in order of size;

The fourth determining unit is configured to assign a value to Priority in BootOption corresponding to all SAS card hard disks according to the first SAS card hard disk and the sorted values of Priority.

Further, the first obtaining unit is used to traverse the BBS Table in the BIOS, and obtain the SASIndex of all SAS card hard disks from the BBS Table;

Further, the second determination unit, when performing the determination of the BootOption corresponding to each SASIndex, specifically executes: judging whether the current SASIndex is equal to the BBSIndex in the current BootOption, and when the judgment result is yes, determining the current SASIndex and the current BBSIndex The BootOption corresponds, and when the judgment result is no, it is determined that the current SASIndex does not correspond to the current BootOption.

Further, it also includes: a fourth acquiring unit, configured to acquire the physical connection sequence of all SAS card hard disks;

The fourth determining unit is configured to determine the value of Priority in BootOption corresponding to all SAS card hard disks according to the physical connection sequence and the determined first SAS card hard disk.

The present invention provides a method and device for adjusting the boot sequence of hard disks with SAS cards. All hard disks with SAS cards are determined, the SASIndex of all hard disks with SAS cards is obtained, and the corresponding BootOption of each hard disk with SAS cards is found through SASIndex. The hard disk with the SAS card that starts first determines the value of Priority in the BootOption corresponding to all the hard disks with the SAS card to adjust the boot sequence of the hard disk with the SAS card.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a flow chart of a method for adjusting the startup sequence of a SAS card hard disk provided by an embodiment of the present invention;

Fig. 2 is a flow chart of another method for adjusting the startup sequence of the SAS card hard disk provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a device for adjusting the startup sequence of a SAS card hard disk provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of another device for adjusting the startup sequence of the hard disk of the SAS card provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

As shown in Figure 1, the embodiment of the present invention provides a method for adjusting the startup sequence of the SAS card hard disk, the method may include the following steps:

S0: Predetermine the hard disk of the first SAS card to be started first;

S1: Determine all SAS card hard disks, and obtain the SASIndex (index value) of all SAS card hard disks;

S2: traverse all BootOptions (boot device options), and determine the BootOption corresponding to each SASIndex;

S3: According to the SAS card hard disk corresponding to each SASIndex and the BootOption corresponding to each SASIndex, determine the BootOption corresponding to each SAS card hard disk;

S4: According to the determined first SAS card hard disk, determine the Priority (priority) value in BootOption corresponding to all SAS card hard disks.

Through a method for adjusting the startup sequence of the SAS card hard disk provided by the embodiment of the present invention, all the SAS card hard disks are determined, the SASIndex of all the SAS card hard disks is obtained, and the BootOption corresponding to each SAS card hard disk is found through the SASIndex, according to the predetermined The hard disk with the first SAS card started first determines the value of Priority in the BootOption corresponding to all the hard disks with the SAS card to adjust the boot sequence of the hard disk with the SAS card.

In order to obtain the SASIndex of all SAS card hard disks, it is necessary to find the SAS card hard disks connected to the physical host, which can be achieved in the following manner: in the S1, the determination of all the SAS card hard disks includes:

BBS Table (BIOS Boot Select Table, boot device option list) in BIOS (Basic Input Output System, Basic Input Output System) determines the identification information of all boot devices in the BBS Table, wherein the identification information includes: One or more of BUS (bus) serial number, DEV (device) serial number, and FUN (function) serial number;

According to the identification information of the current boot device, access the current boot device to obtain the type information of the current boot device, wherein the type information includes: Class (type), SubClass (subtype);

According to the type information of each boot device, determine all the hard disks of the SAS card in the boot device.

In a possible implementation manner, the S1 includes: traversing the BBS Table in the BIOS, and obtaining the SASIndex of all SAS card hard disks from the BBS Table.

In a possible implementation manner, the existing Priority may be used to reassign the Priority of each SAS card hard disk. After the S3, it also includes: obtaining the Priority in the BootOption corresponding to each SAS card hard disk, and sorting all the Priority values in order of size;

The S4 includes: according to the first SAS card hard disk and all Priority values after the sorting, assigning a value to the Priority in the BootOption corresponding to all the SAS card hard disks.

For example, the smaller the value of Priority, the higher the corresponding SAS card hard disk is started, and the priority is higher. The obtained Priorities can be sorted from small to large. In S4, assign the smallest Priority to the Priority of the hard disk with the earliest SAS card in the startup sequence, and so on.

The SAS card hard disk is one of the boot devices. Each boot device corresponds to a BootOption. The SAS Index of the corresponding SAS card hard disk is stored in the BootOption of the SAS card hard disk. You can find the SAS card hard disk through the SASIndex of the SAS card hard disk. The corresponding BootOption. In a possible implementation manner, in the S2, the determining the BootOption corresponding to each SASIndex includes: judging whether the current SASIndex is equal to the BBSIndex in the current BootOption, and if so, determining that the current SASIndex corresponds to the current BootOption , otherwise, it is determined that the current SASIndex does not correspond to the current BootOption.

In a possible implementation manner, generally speaking, the first SAS card hard disk in the physical connection sequence is the first SAS card hard disk, and the startup sequence can be adjusted according to the physical connection sequence. The method also includes: obtaining the physical connection sequence of all SAS card hard disks;

The S4 includes: according to the physical connection sequence and the determined first hard disk of the SAS card, determining the value of Priority in the BootOption corresponding to all the hard disks of the SAS card.

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In this embodiment, a server is loaded with SAS card hard disk 1, SAS card hard disk 2, and SAS card hard disk 3, wherein the operating system is in the SAS card hard disk 2, and the SAS card hard disk 2 needs to be started first, but, When the server is powered on, the SAS card hard disk that responds first is not SAS card hard disk 2, so the startup sequence of the SAS card hard disk needs to be adjusted. The smaller the value of Priority, the higher the priority, and the corresponding SAS card hard disk will be started first.

As shown in Figure 2, the embodiment of the present invention provides a method for adjusting the boot order of the SAS card hard disk, the method may include the following steps:

Step 201: Predetermine that the SAS card hard disk to be started first is the SAS card hard disk 2 .

Step 202: Query the BBS Table in the BIOS to determine the identification information of all boot devices in the BBS Table, wherein the identification information includes: one or more of BUS serial number, DEV serial number, and FUN serial number.

Step 203: According to the identification information of the current boot device, access the current boot device to obtain type information of the current boot device, wherein the type information includes: Class and SubClass.

Step 204: According to the type information of each boot device, determine all the SAS card hard disks in the boot device, which are: SAS card hard disk 1, SAS card hard disk 2, and SAS card hard disk 3.

Step 205: traverse the BBS Table in the BIOS, and obtain the SASIndex of the hard disk 1 of the SAS card, the SASIndex of the hard disk 2 of the SAS card, and the SASIndex of the hard disk 3 of the SAS card from the BBS Table.

For example, the SASIndex of SAS card hard disk 1 is A1, the SASIndex of SAS card hard disk 2 is A2, and the SASIndex of SAS card hard disk 3 is A3.

After all the SAS card hard disks are determined, traverse the BBS Table in the BIOS, and obtain the SASIndex of the current SAS card hard disk from the BBS Table according to the identification information of the current SAS card hard disk.

Step 206: traverse all BootOptions, and determine the BootOption corresponding to each SASIndex.

For example, the SASIndex of hard disk 1 of the SAS card is A1.

Determine whether the SASIndex of the SAS card hard disk 1 is equal to the BBSIndex in the current BootOption. If the current BBSIndex value is also A1, then determine that the SASIndex of the SAS card hard disk 1 corresponds to the current BootOption. If the current BBSIndex value is not A1, Make sure that the SASIndex of hard disk 1 on the SAS card does not correspond to the current BootOption.

Step 207: Determine the BootOption corresponding to each SAS card hard disk according to the SAS card hard disk corresponding to each SASIndex and the BootOption corresponding to each SASIndex.

For example, the SAS card hard disk corresponding to A1 is SAS card hard disk 1, the BootOption corresponding to A1 is BootOption 1, and the BootOption corresponding to SAS card hard disk 1 is BootOption 1. In addition, SAS card hard disk 2 corresponds to BootOption 2, and SAS card hard disk 3 corresponds to BootOption 3.

Step 208: Obtain the Priority in the BootOption corresponding to each hard disk of the SAS card, and sort all the Priority values in ascending order, which are: B3, B1, and B2.

For example, the Priority value obtained from BootOption 1 is B1, the Priority value obtained from BootOption 2 is B2, and the Priority value obtained from BootOption 3 is B3. The Priority is sorted by the bubble algorithm, from small to large: B3, B1, B2.

Step 209: assign the Priority in the BootOption corresponding to the hard disk 2 of the SAS card as B3 according to all the sorted Priority values.

In this way, the SAS card hard disk 2 can be started first. In addition, you can assign the Priority in the BootOption corresponding to the hard disk 1 of the SAS card as B1, and assign the Priority in the BootOption corresponding to the hard disk 3 of the SAS card as B2; you can also assign the Priority in the BootOption corresponding to the hard disk 1 of the SAS card as B2. Assign the Priority in the BootOption corresponding to hard disk 3 of the SAS card to B1.

In addition, the method for adjusting the startup sequence of the SAS card hard disk provided in the above embodiment can be realized through a preset adjustment program. adjustment. Specifically, before S1, it also includes: setting an adjustment program in advance, embedding the adjustment program into the BIOS in advance, and implementing step S1, step S2, step S3, and step S4 by executing the adjustment program each time the computer is turned on. wait.

As shown in FIG. 3 and FIG. 4 , the embodiment of the present invention provides a device for adjusting the startup sequence of the hard disk of the SAS card. The device embodiments can be implemented by software, or by hardware or a combination of software and hardware. From the hardware level, as shown in Figure 3, it is a hardware structure diagram of the device where the device for adjusting the startup sequence of the SAS card hard disk provided by the embodiment of the present invention, except for the processor, memory, In addition to the network interface and the non-volatile memory, the device in which the device in the embodiment is located may generally include other hardware, such as a forwarding chip responsible for processing packets, and the like. Taking software implementation as an example, as shown in Figure 4, as a device in a logical sense, it is formed by reading the corresponding computer program instructions in the non-volatile memory into the memory for operation by the CPU of the device where it is located. A device for adjusting the startup sequence of the SAS card hard disk provided in this embodiment includes:

The first determining unit 401 is configured to determine the earliest SAS card hard disk that starts first;

The first obtaining unit 402 is configured to determine all SAS card hard disks, and obtain index values SASIndex of all SAS card hard disks;

The second determination unit 403 is configured to traverse all boot device options BootOption, and determine the BootOption corresponding to each SASIndex;

The third determining unit 404 is configured to determine the BootOption corresponding to each SAS card hard disk according to the SAS card hard disk corresponding to each SASIndex and the BootOption corresponding to each SASIndex;

The fourth determination unit 405 is configured to determine the value of Priority in the BootOption corresponding to all SAS card hard disks according to the determined first SAS card hard disk.

In a possible implementation manner, the first acquiring unit includes:

The query unit is used to query the boot device option list BBS Table in the basic input and output system BIOS, and determine the identification information of all boot devices in the BBS Table, wherein the identification information includes: bus BUS serial number, equipment DEV serial number, One or more of the function FUN serial numbers;

The second acquisition unit is configured to access the current boot device according to the identification information of the current boot device, and acquire type information of the current boot device, wherein the type information includes: type Class, subtype SubClass;

The fifth determining unit is configured to determine all SAS card hard disks in the boot device according to the type information of each boot device.

In a possible implementation manner, the device also includes:

The third obtaining unit is used to obtain the Priority in the BootOption corresponding to each SAS card hard disk, and sort all the Priority values in order of size;

The fourth determining unit is configured to assign a value to Priority in BootOption corresponding to all SAS card hard disks according to the first SAS card hard disk and the sorted values of Priority.

In a possible implementation manner, the first obtaining unit is configured to traverse the BBSTable in the BIOS, and obtain the SASIndex of all SAS card hard disks from the BBS Table;

In a possible implementation manner, the second determination unit, when performing the determination of the BootOption corresponding to each SASIndex, specifically executes: judging whether the current SASIndex is equal to the BBSIndex in the current BootOption, and when the judgment result is yes , determine that the current SASIndex corresponds to the current BootOption, and when the judgment result is no, determine that the current SASIndex does not correspond to the current BootOption.

In a possible implementation manner, the device further includes: a fourth obtaining unit, configured to obtain the physical connection sequence of all SAS card hard disks;

The fourth determining unit is configured to determine the value of Priority in BootOption corresponding to all SAS card hard disks according to the physical connection sequence and the determined first SAS card hard disk.

The information exchange and execution process among the units in the above-mentioned device are based on the same concept as the method embodiment of the present invention, and the specific content can refer to the description in the method embodiment of the present invention, and will not be repeated here.

A method and device for adjusting the startup sequence of the SAS card hard disk provided by the embodiments of the present invention have the following beneficial effects:

Through a method for adjusting the boot order of the SAS card hard disk provided by the embodiment of the present invention, the SASIndex of all the SAS card hard disks is obtained, and the BootOption corresponding to each SAS card hard disk is found through the SASIndex, and the boot option is determined first according to the predetermined SAS card hard disk, determine the Priority value in BootOption corresponding to all SAS card hard disks, and realize the adjustment of the boot sequence of SAS card hard disks.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or sequence. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a """""" does not exclude the presence of additional same elements in the process, method, article or apparatus comprising said element.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by program instructions related hardware, and the aforementioned programs can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. adjust a method for the boot sequence of SAS card hard disk, it is characterized in that, comprising: pre-determine the card of the SAS at first hard disk started at first, also comprise:

S1: determine all SAS card hard disks, obtains the index value SASIndex of all SAS card hard disks;

S2: travel through all starting outfit option BootOption, determine the BootOption that each SASIndex is corresponding;

S3: the SAS card hard disk corresponding according to each SASIndex and BootOption corresponding to each SASIndex, determines the BootOption that each SAS card hard disk is corresponding;

S4: according to SAS card hard disk at first described in determining, determine the value of the priority P riority in the BootOption that all SAS card hard disks are corresponding.

2. method according to claim 1, is characterized in that, in described S1, describedly determines all SAS card hard disks, comprising:

Starting outfit option list BBS Table in inquiry basic input-output system BIOS, determine the identifying information of all starting outfits in described BBS Table, wherein, described identifying information comprises: one or more in bus B US sequence number, equipment DEV sequence number, function FUN sequence number;

According to the identifying information of current starting outfit, access current starting outfit, obtain the type information of current starting outfit, wherein, described type information comprises: Type C lass, subtype SubClass;

According to the type information of each starting outfit, determine all SAS card hard disks in starting outfit.

3. method according to claim 1, is characterized in that, after described S3, also comprises:

Obtain the Priority in BootOption corresponding to each SAS card hard disk, the value of all Priority is sorted according to size order;

Described S4, comprising:

According to the value of all Priority after the described card hard disk of SAS at first and described sequence, to the Priority assignment in the BootOption that all SAS card hard disks are corresponding.

4. method according to claim 1, is characterized in that,

Described S1, comprising: the BBS Table in traversal BIOS, obtains the SASIndex of all SAS card hard disks from described BBS Table;

And/or,

In described S2, describedly determine the BootOption that each SASIndex is corresponding, comprise: judge that whether current SASIndex is equal with the BBSIndex in current BootOption, if, then determine that current SASIndex is corresponding with current BootOption, otherwise, determine that current SASIndex is not corresponding with current BootOption.

5. method according to claim 1, is characterized in that, also comprises: the physical connection order obtaining all SAS card hard disks;

Described S4, comprising: according to described physical connection order and SAS card hard disk at first described in determining, determine the value of the priority P riority in the BootOption that all SAS card hard disks are corresponding.

6. adjust a device for the boot sequence of SAS card hard disk, it is characterized in that, comprising:

First determining unit, for determining the card of the SAS at first hard disk started at first;

First acquiring unit, for determining all SAS card hard disks, obtains the index value SASIndex of all SAS card hard disks;

Second determining unit, for traveling through all starting outfit option BootOption, determines the BootOption that each SASIndex is corresponding;

3rd determining unit, for according to SAS card hard disk corresponding to each SASIndex and BootOption corresponding to each SASIndex, determines the BootOption that each SAS card hard disk is corresponding;

4th determining unit, for according to SAS card hard disk at first described in determining, determines the value of the priority P riority in the BootOption that all SAS card hard disks are corresponding.

7. device according to claim 6, is characterized in that, described first acquiring unit, comprising:

Query unit, for inquiring about the starting outfit option list BBS Table in basic input-output system BIOS, determine the identifying information of all starting outfits in described BBS Table, wherein, described identifying information comprises: one or more in bus B US sequence number, equipment DEV sequence number, function FUN sequence number;

Second acquisition unit, for the identifying information according to current starting outfit, accesses current starting outfit, obtains the type information of current starting outfit, and wherein, described type information comprises: Type C lass, subtype SubClass;

5th determining unit, for the type information according to each starting outfit, determines all SAS card hard disks in starting outfit.

8. device according to claim 6, is characterized in that, also comprises:

3rd acquiring unit, for obtaining the Priority in BootOption corresponding to each SAS card hard disk, sorts the value of all Priority according to size order;

Described 4th determining unit, for the value according to all Priority after the described card hard disk of SAS at first and described sequence, to the Priority assignment in the BootOption that all SAS card hard disks are corresponding.

9. device according to claim 6, is characterized in that,

Described first acquiring unit, for traveling through the BBS Table in BIOS, obtains the SASIndex of all SAS card hard disks from described BBS Table;

And/or,

Described second determining unit, perform described determine BootOption corresponding to each SASIndex time, concrete execution: judge that whether current SASIndex is equal with the BBSIndex in current BootOption, when judged result is for being, determine that current SASIndex is corresponding with current BootOption, when judged result is no, determine that current SASIndex is not corresponding with current BootOption.

10. device according to claim 6, is characterized in that, also comprises: the 4th acquiring unit, for obtaining the physical connection order of all SAS card hard disks;

Described 4th determining unit, for according to described physical connection order and SAS card hard disk at first described in determining, determines the value of the priority P riority in the BootOption that all SAS card hard disks are corresponding.