Hi all,
My Sun StorageTek 2540 have redundant batteries, but a battery was failed.
# /opt/SUNWstkcam/bin/sscs list -d MyStorage1 fru
Name FRU Alarm State Status Revision Unique Id
-------------------------- ----------- -------- ------------------- ------ ----------- ----------------------------
Tray.85.Battery.A Battery - Enabled OK N/A SY81500764SA
Tray.85.Battery.B Battery Critical Enabled but Offline Error N/A SY81500830SA
After the battery failure, the server read/write performance was down (I assume)!
I read some doc from internet and I found a reason to performance down when storage array battery failed. A guy tell me you should change "Write Cache without Batteries" option to ENABLE on the storage volume using SSCS CLI utility.
Command is below:
/opt/SUNWstkcam/bin/sscs modify -a MyStorage -p disk_pool -b enable
I afraid that lost any data on the storage box after execute above command.
Please tell me what happening when I execute " /opt/SUNWstkcam/bin/sscs modify -a MyStorage -p disk_pool -b enable" command on the storage box?
BR,
Buyantugs