this post was submitted on 14 Jul 2023
5 points (77.8% liked)

Selfhosted

39435 readers
6 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
5
Hot RAID swapping? (lemmy.world)
submitted 1 year ago by [email protected] to c/[email protected]
17 comments fedilink hide all child comments
 

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.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 3 points 1 year ago

The safest way is to make a backup and restore it to the new array.

Your way sounds pretty fun though. I'm sure the firmware will complain, but once you have a solid backup you can go nuts!

Also consider a solution such as Bachefs - RAID is cool and all, but this will get you most of the way there too. (Decide on the data safety for yourself but I'm running a 90tb pool with 24tb of metadata / cache on SSD)