讓VMware ESXi 5.0 正確辨識SSD及啟用host cache

參考資料:

http://www.yellow-bricks.com/2011/08/18/swap-to-host-cache-aka-swap-to-ssd/

http://www.virtuallyghetto.com/2011/07/how-to-trick-esxi-5-in-seeing-ssd.html

http://www.informationweek.com/the-vmware-write-cache-challenge-solved/240147594

 

環境:

Dell R610 300G sas x4 (RAID5), 200G sata ssd x 2 (RAID1)

裝了2顆SSD但是在vCenter上無法正常辨識為SSD，因此無法啟用host cache，必須利用下面的選項將SSD datastore標記為SSD

 

指令備忘

esxcli storage nmp satp rule add --satp VMW_SATP_LOCAL --device naa.6782bcb01ef0cf001a00e4a3722e6b00 --option=enable_ssd

esxcli storage nmp satp rule list | grep enable_ssd

esxcli storage core claiming reclaim -d naa.6782bcb01ef0cf001a00e4a3722e6b00

esxcli storage core device list --device=naa.6782bcb01ef0cf001a00e4a3722e6b00

vim-cmd hostsvc/storage/refresh

 

 

todo:

host cache是write or read cache?(待確認)

從Swapping to Host Cache看起來是VM swap file的write cache