I have a RAID 5 setup and I want to replace the drives with bigger drives.
I do not have an external drive big to make a backup, which rules out the traditional 1) Backup. 2) All new drives. 3) Restore option.
I do not have enough slots to make both arrays at the same time.
What are my remaining options?
Do I have to replace, rebuild, and repeat for each drive, or can I temporarily convert it to a RAID 0+1 to minimize rebuild times? What would be the most time-efficient way to replace each drive?