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