关于 Adaptec Raid 控制器上的写缓存设置和写缓存状态的困惑

关于 Adaptec Raid 控制器上的写缓存设置和写缓存状态的困惑

由于性能问题,我想验证 Adaptec ASR71605 Raid 控制器是否确实启用了写缓存。我发现write-cache setting=enabled和之间不匹配write-cache status=off,我想知道缓存是否真的启用了。

当明确启用缓存时,arcconf setcache 1 LOGICALDRIVE 1 wb状态不会改变。


请参阅下面的 arcconf 输出:

root@stor ~ $ arcconf getconfig 1 ld
Controllers found: 1
----------------------------------------------------------------------
Logical device information
----------------------------------------------------------------------
Logical device number 0
   Logical device name                      : SYSTEM
   RAID level                               : 6 Reed-Solomon
   Status of logical device                 : Optimal
   Size                                     : 51188 MB
   Stripe-unit size                         : 256 KB
   Read-cache setting                       : Enabled
   Read-cache status                        : On
   Write-cache setting                      : Enabled
   Write-cache status                       : Off
   Partitioned                              : Yes
   Protected by Hot-Spare                   : No
   Bootable                                 : Yes
   Failed stripes                           : No
   Power settings                           : Disabled
   --------------------------------------------------------
   Logical device segment information
   --------------------------------------------------------
   Segment 0                                : Present (Controller:1,Enclosure:0,Slot:4)      WD-WXH...
   Segment 1                                : Present (Controller:1,Enclosure:0,Slot:5)      WD-WX1...
   Segment 2                                : Present (Controller:1,Enclosure:0,Slot:6)      WD-WXH...
   Segment 3                                : Present (Controller:1,Enclosure:0,Slot:7)      WD-WXH...
   Segment 4                                : Present (Controller:1,Enclosure:0,Slot:12)      WD-WX...
   Segment 5                                : Present (Controller:1,Enclosure:0,Slot:13)      WD-WX...
   Segment 6                                : Present (Controller:1,Enclosure:0,Slot:14)      WD-WX...
   Segment 7                                : Present (Controller:1,Enclosure:0,Slot:15)      WD-WX...

Logical device number 1
   Logical device name                      : RAPTOR
   RAID level                               : 6 Reed-Solomon
   Status of logical device                 : Optimal
   Size                                     : 5668850 MB
   Stripe-unit size                         : 256 KB
   Read-cache setting                       : Enabled
   Read-cache status                        : On
   Write-cache setting                      : Enabled
   Write-cache status                       : Off
   Partitioned                              : No
   Protected by Hot-Spare                   : No
   Bootable                                 : No
   Failed stripes                           : No
   Power settings                           : Disabled
   --------------------------------------------------------
   Logical device segment information
   --------------------------------------------------------
   Segment 0                                : Present (Controller:1,Enclosure:0,Slot:4)      WD-WXH...
   Segment 1                                : Present (Controller:1,Enclosure:0,Slot:5)      WD-WX1...
   Segment 2                                : Present (Controller:1,Enclosure:0,Slot:6)      WD-WXH...
   Segment 3                                : Present (Controller:1,Enclosure:0,Slot:7)      WD-WXH...
   Segment 4                                : Present (Controller:1,Enclosure:0,Slot:12)      WD-WX...
   Segment 5                                : Present (Controller:1,Enclosure:0,Slot:13)      WD-WX...
   Segment 6                                : Present (Controller:1,Enclosure:0,Slot:14)      WD-WX...
   Segment 7                                : Present (Controller:1,Enclosure:0,Slot:15)      WD-WX...

答案1

据 Adaptec 支持称,在固件更新和下次重启之间,写入缓存不起作用。

确实,已经进行了固件更新而无需重新启动,arcconf getversion如果命令列出Staged Version数字就可以看到这一点。

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