由于性能问题，我想validationAdaptec ASR71605 RAID控制器确实启用了写caching。 我可以看到write-cache setting=enabled和write-cache status=off不匹配，我不知道是否实际启用caching。
当使用arcconf setcache 1 LOGICALDRIVE 1 wb显式启用caching时，状态不会改变。
请看下面的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...
根据Adaptec支持，写入caching在固件更新和下次重新启动之间的时间内不工作。
事实上，在没有重新启动的情况下进行了固件更新，如果命令列出Staged Version号，可以使用arcconf getversion来查看。