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Tell me why I shouldn't use btrfs
(lemmy.zip)
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this post was submitted on 23 Nov 2024
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Meh. I run proxmox and other boot drives on ext4, data drives on xfs. I don't have any need for additional features in btrfs. Shrinking would be nice, so maybe someday I'll use ext4 for data too.
I started with zfs instead of RAID, but I found I spent way too much time trying to manage RAM and tuning it, whereas I could just configure RAID 10 once and be done with it. The performance differences are insignificant, since most of the work it does happens in the background.
You can benchmark them if you care about performance. You can find plenty of discussion by googling "ext vs xfs vs btrfs" or whichever ones you're considering. They haven't changed that much in the past few years.
I spent none, and it works fine. what was your issue?
I have four 6tb data drives and 32gb of RAM. When I set them up with zfs, it claimed quite a few gb of RAM for its cache. I tried allocating some of the other NVMe drive as cache, and tried to reduce RAM usage to reasonable levels, but like I said, I found that I was spending a lot of time fiddling instead of just configuring RAID and have it running just fine in much less time.
You can ignore the RAM usage, it's just cache. It uses up to half your RAM by default but if other things need it zfs will just clear RAM for that to happen.
That might be what was supposed to happen, but when I started up the VMs I saw memory contention.
Proxmox only supports btrfs or ZFS for raid
Or at least that's what I thought
ext4 and others too.
For raid?
You could do it with mdadm
Not on Proxmox