this post was submitted on 27 Mar 2024
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RAID setup for Ubuntu media server (sh.itjust.works)
submitted 8 months ago* (last edited 8 months ago) by blackstampede@sh.itjust.works to c/linux@lemmy.ml
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I recently acquired two used blade servers and a short rack to put them in. I'm planning to use one or the other as the replacement for a media server that died on me a bit ago. The old media server was just a little refurb dell workstation, with a single SSD in it, but the servers have 6 and 8 bays, respectively.

I would like to RAID them so that one drive dying doesn't lose any of my media, and I was leaning towards Ubuntu server as an OS. I'm not sure how to do that, and I'm kind of poking around for info and advice. Hit me with it.

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[–] originalucifer@moist.catsweat.com -1 points 8 months ago (3 children)

but this guy is specifically not using consumer hardware

[–] n2burns@lemmy.ca 1 points 8 months ago (2 children)

Yes, but they're using it in a consumer setting. That was the whole point of my comment. It sounds like they may have 2 identical RAID controllers, which means they might have a spare. However, if one dies, they'd be looking at obtaining another spare, migrating their data to a new setup, or risking complete data loss.

[–] mark3748@sh.itjust.works 1 points 8 months ago (1 children)

They’ll have to get a new SAS controller unless the RAID controller has an HBA mode. Running ZFS under a RAID controller is the best way to lose all of your data.

ZFS is wonderful but it takes quite a bit of planning and specialized knowledge to implement properly. Your fear of a failed RAID controller is a bit much, too. I’ve had to deal with a single controller failure in 30 years of IT (and I’ve done warranty work for all of the major OEMs in corporate IT for most of those 30 years)

[–] n2burns@lemmy.ca 1 points 8 months ago

Is HBA mode that rare? It seems pretty common. Either way, we don't know OP's hardware.

And I'm not scared of RAID controller failure, I'm scared of single point failure. I know it's highly unlikely, but the risk for stranded data is unacceptable IMHO unless you're recommending OP make sure they have a spare on hand.

Also, I never even mentioned ZFS (I've actually never even used it).