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I recently decided to upgrade my desktop's storage, going from a single 4 TB NVMe to 3 x 4 TB NVMe. My intention when I bought the additional 2 was to run a RAID 5 array in my PC so losing one wouldn't suck as much, but I'm using BTRFS and when I looked into setting it up I found a million warnings not to use it. So my questions are as follows:
1. Is BTRFS RAID 5 stable enough at this point? The biggest issues I've read about are write holes, which I'd have today anyway with one drive. This isn't a server, just my desktop, I can tolerate a missing file if the power blips.
2. If BTRFS is really not a good idea, alternatives? I've had bad experiences at work with XFS. ZFS feels like a big tail on a little dog. Maybe try BCacheFS? It seems like it won't do anything RAID 5 like. Go back to Ext4?
3. Throw caution to the wind and just RAID 0 all three drives for nearly 12 TB of storage!?!
4. Is there something else I'm not thinking of? Maybe run 2 x NVMes in RAID 1 and mount that at /home and let the root be non redundant or something?
This system is decently specced. A Ryzen 9 5950x, 64 gigs of RAM, and I've got a 6 TB RAID 0 LVM available to me as well as a connection to a 35 TB NAS. Unfortunately, the board only has 3 NVMe slots, so I can't go to an even number. My goal is to get some more space out of the system and add some protection. I use the PC mostly for gaming, though I also develop a little, make games, and other general use tasks. As it is, I play most games off my NAS but with some of the AAA titles, it can be painful to load, so moving those to "main" storage would be ideal. I was really expecting to get 8 TB with redundancy out of BTRFS.
Edit: Oops, forgot to mention that I run unencrypted and boot with rEFInd. So if it works with rEFInd, that's ideal. Although now that I don't dual boot anymore, I could be convinced to switch if it became an issue.
Hopefully someone has some good ideas.
Last edited by Eragon615 (2024-05-03 18:56:50)
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