MegaCli:获取逻辑驱动器的/dev/sd*设备名称

Question

假设我知道我想要的驱动器在Adapter 8，Virtual 0上，有没有办法获得Linux设备的名称(例如/dev/sdt)？我上的是RHEL 6.2。

-pdlist为每个物理驱动器显示一个WWN值，但这并没有多大帮助。-ldinfo不打印万维网或任何其他标识值。

# ./MegaCli64 -pdlist -a8 | grep WWN
WWN: 500051610003776C
WWN: 5000516100037BFC
WWN: 5000516100038090
WWN: 50005161000284F4
WWN: 5000516100037C0C
WWN: 5000516100037C5C
WWN: 50005161000310C8
WWN: 5000516100037F4C

# ls -1dt /dev/disk/by-id/wwn*
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd142c12c84d
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd142c0973e6
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd132c002573
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd122bf6e2f6
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd122beda52a
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd112be46f10
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd112bdb3ffb
/dev/disk/by-id/wwn-0x600605b0043e52d01721fd102bd20f14

# ./MegaCli64 -v                       
 MegaCLI SAS RAID Management Tool  Ver 8.03.08 Mar 15, 2012

Answer 1

您应该能够比较来自-pdlist的磁盘序列号和来自lshw的输出。

# MegaCLI -pdlist -a0 | grep "Inquiry Data:"
Inquiry Data:       XXXXXXXXXXXXHitachi YYYYYYYY                 ZZZZZZ
...

然后在lshw的输出中搜索序列号。设备名称将在logical name字段中。

我无法验证这一点，因为我的所有磁盘都在一个卷中。

识别逻辑驱动器

将来自Target Id的MegaCLI与设备的scsi总线目标进行比较。在lshw中，它是bus info。

# MegaCli -ldinfo -Lall -aall 


Adapter 0 -- Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name                :
RAID Level          : Primary-6, Secondary-0, RAID Level Qualifier-3
Size                : 7.275 TB
State               : Optimal
Strip Size          : 64 KB
Number Of Drives    : 6
Span Depth          : 1
Default Cache Policy: WriteBack, ReadAhead, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAhead, Direct, No Write Cache if Bad BBU
Access Policy       : Read/Write
Disk Cache Policy   : Disabled
Ongoing Progresses:
  Check Consistency        : Completed 17%, Taken 89 min.
Encryption Type     : None


Virtual Drive: 1 (Target Id: 1)
Name                :
RAID Level          : Primary-6, Secondary-0, RAID Level Qualifier-3
Size                : 7.275 TB
State               : Optimal
Strip Size          : 64 KB
Number Of Drives    : 6
Span Depth          : 1
Default Cache Policy: WriteBack, ReadAhead, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAhead, Direct, No Write Cache if Bad BBU
Access Policy       : Read/Write
Disk Cache Policy   : Disabled
Ongoing Progresses:
  Check Consistency        : Completed 17%, Taken 89 min.
Encryption Type     : None

来自lshw：

# lshw -class disk
...
              *-enclosure UNCLAIMED
               description: SCSI Enclosure
               product: Bobcat
               vendor: LSI CORP
               physical id: 1.75.0
               bus info: scsi@0:1.117.0
               version: 0504
               configuration: ansiversion=5
          *-disk:0
               description: SCSI Disk
               product: MR9260-16i
               vendor: LSI
               physical id: 2.0.0
               bus info: scsi@0:2.0.0
               logical name: /dev/sda
               version: 2.12
               serial: svDASJ-f8kM-4qp5-BswW-3IKC-DDyA-djz8N7
               size: 7450GiB
               capacity: 7450GiB
               capabilities: lvm2
               configuration: ansiversion=5
          *-disk:1
               description: SCSI Disk
               product: MR9260-16i
               vendor: LSI
               physical id: 2.1.0
               bus info: scsi@0:2.1.0
               logical name: /dev/sdb
               version: 2.12
               serial: NHUvUy-1tm4-aGYW-g6DZ-t1Z9-gxW8-JhvFfL
               size: 7450GiB
               capacity: 7450GiB
               capabilities: lvm2
               configuration: ansiversion=5

Answer 2

我只是在我的megaclisas状态叉中添加了一些支持，以便将逻辑驱动器与OS本机设备相匹配。下面是一个输出示例：

$ sudo ./megaclisas-status
-- Controller information --
-- ID | H/W Model                  | RAM    | Temp | Firmware     
c0    | LSI MegaRAID SAS 9271-8i   | 1024MB | 88C  | FW: 23.32.0-0009 
c1    | LSI MegaRAID SAS 9280-4i4e | 512MB  | N/A  | FW: 12.15.0-0205 

-- Array information --
-- ID | Type   |    Size |  Strpsz |   Flags | DskCache |  Status |  OS Path | InProgress   
c0u0  | RAID-1 |   1817G |  256 KB | ADRA,WT |  Enabled | Optimal | /dev/sda | None         
c0u1  | RAID-5 |  16370G |  512 KB | ADRA,WB |  Enabled | Optimal | /dev/sdb | None         
c1u0  | RAID-0 |    476G |  256 KB | ADRA,WT |  Enabled | Optimal | /dev/sdc | None         

-- Disk information --
-- ID   | Type | Drive Model                                  | Size     | Status          | Speed    | Temp | Slot ID  | LSI Device ID
c0u0p0  | HDD  | WD-WMC300422505WDC WD20EFRX-68AX9N0 80.00A80 | 1.817 TB | Online, Spun Up | 6.0Gb/s  | 31C  | [252:4]  | 17      
c0u0p1  | HDD  | WD-WMC300421817WDC WD20EFRX-68AX9N0 80.00A80 | 1.817 TB | Online, Spun Up | 6.0Gb/s  | 31C  | [252:5]  | 18      
c0u1p0  | HDD  | WD-WX41DA40LCE5WDC WD60EFRX-68MYMN1 82.00A82 | 5.456 TB | Online, Spun Up | 6.0Gb/s  | 32C  | [252:0]  | 15      
c0u1p1  | HDD  | WD-WX41DA40L42RWDC WD60EFRX-68MYMN1 82.00A82 | 5.456 TB | Online, Spun Up | 6.0Gb/s  | 31C  | [252:1]  | 12      
c0u1p2  | HDD  | WD-WX61DA4HAKFZWDC WD60EFRX-68MYMN1 82.00A82 | 5.456 TB | Online, Spun Up | 6.0Gb/s  | 32C  | [252:6]  | 14      
c0u1p3  | HDD  | WD-WX41DA40LEF1WDC WD60EFRX-68MYMN1 82.00A82 | 5.456 TB | Online, Spun Up | 6.0Gb/s  | 31C  | [252:7]  | 16      
c1u0p0  | SSD  | 0000000011310344CFE3M4-CT512M4SSD2 070H      | 476.4 Gb | Online, Spun Up | 6.0Gb/s  | N/A  | [252:1]  | 11      

-- Unconfigured Disk information --

该工具本身可在：http://step.polymtl.ca/~coyote/dist/megaclisas-status/megaclisas-status上使用

我希望这能帮到你,

文森

Answer 3

最近，我已经在许多新服务器上解决了这个问题，我已经想出了一个解决方案！我们不使用RAID上的"RAID“卡，只是使用SAS驱动器作为JBOD。/dev/disk/by-id映射由SAS Address中的一个(或几个)关闭。这听起来很奇怪，但它能在我测试过的几十台服务器上工作。我还收到了独立确认，这对其他人是有效的。

千兆是一个简短的Perl脚本，它实现了上述发现。它生成一个从Linux驱动器sd*到MegaRaid驱动器ID的映射，并显示来自MegaRaid的万维网。在生产中使用了一段时间之后，我还添加了megablink和megaunblink来控制闪烁的LED。这个特性使我免于从服务器中拔出错误的驱动器。请在github上提交错误报告。

[图片感谢斯科特·弗勒姆 ]