IBM x3650M3 使用的阵列卡 ServeRAID M10XX and M50XX使用了power save技术
这种不成熟的技术将会导致磁盘wake up的过程中出现不可知的系统故障
比如:

sd 0:2:0:0: timing out command, waited 360s
sd 0:2:0:0: SCSI error: return code = 0x06000000
end_request: I/O error, dev sda, sector 528987842
ext3_abort called.
EXT3-fs error (device sda5) in ext3_dirty_inode: Journal has aborted
__journal_remove_journal_head: freeing b_committed_data
unable to read inode block – inode=898882, block=917148
EXT3-fs error (device sda3) in ext3_dirty_inode: Journal has aborted
EXT3-fs error (device sda3) in ext3_dirty_inode: Journal has aborted
ext3_abort called.
EXT3-fs error (device sda3): ext3_journal_start_sb: Detected aborted journal
Remounting filesystem read-only

使用如下命令检测是否启用了节电模式:
> MegaCLI -AdpGetProp DefaultLdPSPolicy -a0
> Sample Output: “Adapter 0: Default power savings policy : Automatic”
以上输出说明节电模式启用,应当关闭

关闭节电模式:
> MegaCLI -AdpSetProp -DefaultLdPSPolicy -None -a0
or
> MegaCLI -LDSetPowerPolicy None -Lall -aALL
> Sample Output: “Adapter 0: Default power savings policy : None”
以上输出说明节电模式已经关闭

检查热备盘(hot spare)的节电策略:
> MegaCLI -AdpGetProp DsblSpinDownHSP -aALL
> Sample Output: “Adapter 0: Disable spin Down of Hot Spares: Disabled”
以上输出说明热备盘(hot spare)的”禁用了spin down模式禁用设置”,也就是启用的
修改热备盘(hot spare)的节电策略:
> MegaCLI -AdpSetProp -DsblSpinDownHSP -val -aALL

相关链接:http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5087494