Selfhosted

40168 readers

735 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:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam posting.
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.
Don't duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
No trolling.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

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

Questions? DM the mods!

founded 1 year ago

MODERATORS

Hot RAID swapping? (self.selfhosted)

submitted 1 year ago by Anonymouse to c/selfhosted

15 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] 2 points 1 year ago (1 children)

I have a feeling you'd end up with a bunch of big drives with small volumes on them if it did work.

Warning you, I've had issues with RAID combining SSD and HDD. Basically I was on an older dell server and I wanted to do mirroring and the bios straight up refused to do it because it didn't want to mix ssds and hdds.

[–] Anonymouse 1 points 1 year ago (1 children)

I suspect I'll have an issue after reading many of the comments. This is also an older Dell server. My only real advantage is that it's currently hosting 2 VMs and one is just a test server, so I don't mind losing the data.

[–] [email protected] 2 points 1 year ago

Imaging software is a godsend for that sort of thing. I ended up using BartPE for something like that, and it worked great -- it has a free imaging program on it. You only need a removable drive large enough for all your files since it'll compress everything.