I’d like to swap my spinning disks with SSD drives. I have the new disks and they’re just larger than the old ones. My configuration is a RAID-5 with 3 disks (and one hot spare). Can I hot swap a single disk (HDD to SSD), wait for the new disk to rebuild, then repeat?
I’m thinking that I’d mark down the hot spare, replace it with an SSD, mark the SSD as hot spare, mark HDD 1 as “bad” causing the hot spare to activate, then repeat for the other 2 HDDs. I don’t have a lot of experience with RAID, but did perform a single disk swap once with success.
If this is a bad idea, why? What’s the best way to upgrade?
I’m not sure if this is the right community for this question. If not, please guide me to the right one.
Consider moving to RAID-6. Single redundancy is not cool anymore.
This is just a homelab, running on old hardware. I don’t think the raid controller supports RAID-6 and I only got 3 new SSDs, and I read that RAID-6 needs 4 drives.
Correct. Get a 4th drive. You will be thankful one day down the road when you are rebuilding the array and you lose a drive during the rebuild.