this post was submitted on 17 Apr 2024
8 points (100.0% liked)

Selfhosted

40152 readers
510 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
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
HybridSarcasm@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz
8
[Help] Moving Hardware RAID drives between x3650 servers (lemm.ee)
submitted 7 months ago by moup@lemm.ee to c/selfhosted@lemmy.world
2 comments fedilink hide all child comments
 

Hi all,

I have two servers - one is an IBM System x3650 M3 that I’ve been using for a while and the other is an x3550 M5 that I would like to move everything to. I have 6 drives which I think were configured as RAID 1 on hardware level. (MegaRAID, I think)

Is there a way that I can “just move” the drives from the old to the new - and just let it boot and continue where it left off - without making a mess of things or would that just screw up the RAID configuration?

I’ve been searching for answers, even asking ChatGPT (lol) for some answers but can’t seem to find any concrete answers.. All the data is backed up but I’m worried that I’ll spend days (trying to remember how to) reconfigure everything if something goes wrong.

Anyone has experience with anything like this?

top 2 comments
sorted by: hot top controversial new old
[–] Max_P@lemmy.max-p.me 5 points 7 months ago

Do you have spare drives to test? Can be really small or mismatched, it's just for testing.

The idea is as follows: make the exact same RAID with the old controller on test drives, then put them in the target controller with hopefully the same settings and see if it's happy. Make sure to have some large files with known checksums on it, just to test if the data is correct and not corrupted in subtle ways.

If it works, then it should work with the real drives. If it doesn't, good luck.

Also RAID 1 with 6 drives doesn't really make sense. RAID 1 would be mirrors, and if your data had 6 copies I think you'd care way too much about your data to even consider doing this. Probably RAID 5/6/10, which adds parity and striping to the mix which does significantly increase the chances of incompatibility.

[–] MangoPenguin@lemmy.blahaj.zone 1 points 7 months ago

RAID 5 or 6 maybe with 6 drives?

First before doing anything, do you have reliable tested backups in place for the data on the drives?

Hardware RAID is pretty difficult to work with, if the RAID controllers are the same model with the same firmware moving the drives should in theory work.