this post was submitted on 07 Mar 2024
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I really want to run ceph because it fits a number of criteria I have: gradually adding storage, mismatched disks, fault tolerance, erasure encoding, encryption, support out-of-the-box from other software (like Incus).

But then I look at the hardware suggestions, and they seem like an up-front investment and ongoing cost to keep at least three machines evenly matched on RAM and physical storage. I also want more of a single-box NAS.

Would it be idiotic to put a ceph setup all on one machine? I could run three mons on it with separate physical device backing each so I don't lose everything from a disk failure with those. I'm not too concerned about speed or network partitioning, this would be lukewarm storage for me.

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[–] SidewaysHighways@lemmy.world 3 points 8 months ago

Yep I feel this way.

No point in pricing a single HDD because I'm shooting for parity on every vdev I spin up.