This is command in megacli linux to blink the disk in order to locate the phisical placement of the storage.
Start blinking
MegaCli -pdlocate physdrv \[E:s\] a0
Stop blinking
MegaCli -pdlocate stop physdrv \[252:0\] a0
If there is no disk blinked then you may need to power off the server and check wich drive Serial Number does not shown in the drive list on megacli command
