MegaCLI tool can be used to check RAID status on LSI card like LSI MegaRAID 8888ELP and MegaRAID SAS 9260-4i.
The tool can be downloaded from
http://www.lsi.com/downloads/Public/MegaRAID%20Common%20Files/8.07.07_MegaCLI.zip
After downloading, unzip and run these commands to check RAID status
# Show all information like firmware version, supported features, battery backup status, virtual drive status, physical drive status
MegaCli64 -AdpAllInfo -aAll
# Show battery backup status
MegaCli64 -AdpBbuCmd -aAll
# View details of physical drives
MegaCli64 -PDList -aALL
# Check RAID level, cache policy, stripe size, RAID status
MegaCli64 -LDInfo -Lall -aALL
Advanced commands
# Check progress when reconstructing RAID array
MegaCli64 -LDRecon ShowProg L0 -a0
# Disable disk cache when power backup is not available
MegaCli64 -LDGetProp -DskCache -LAll -aALL
# Enable diskcache
MegaCli64 -LDGetProp -DskCache -LAll -aALL
# Disable write-cache when battery backup is not available
MegaCli64 -LDSetProp NoCachedBadBBU -LALL -aALL
