E - enclosure, S - slot

Write controller log to file events.log in current directory:

MegaCli64 -AdpEventLog -GetEvents -f events.log -aALL

Virtual drive info:

MegaCli64 -LDInfo -Lall -aALL

Physical drive info:

MegaCli64 -PDList -aALL
MegaCli64 -PDInfo -PhysDrv [E:S] -aALL

Identify drive by LED:

MegaCli -PdLocate -start -PhysDrv [E:S] -aN
MegaCli -PdLocate -stop -PhysDrv [E:S] -aN

Prepare drive for removal:

MegaCli64 -PDOffline -PhysDrv [E:S] -aN
MegaCli64 -PDMarkMissing -PhysDrv [E:S] -aN
MegaCli64 -PDPrpRmv -PhysDrv [E:S] -aN

Show rebuild progress:

MegaCli64 -PDRbld -ShowProg -PhysDrv [E:S] -aALL