RAID rebuild limitations

Q: I have a degraded RAID with multiple failed drives. I have replaced all of the drives, but when I try to rebuild on all of these drives the operation fails. Why is this happening?

A: MegaRAID controllers can only rebuild one drive at a time. You will need to start a rebuild on a single drive, and then wait for each rebuild to finish before starting the next one.

You can check the status of a rebuild with the following commands:

# MegaCli64 -PDRbld -ShowProg -aALL

# storcli64 /cx/ex/sx show rebuild

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