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"is 90% used space even good with ZFS these days?" Yes, you can run busy zpools with many different random access consumers at 90%. I wouldn't do it without a
by rsync 4y ago
"is 90% used space even good with ZFS these days?"
Yes, you can run busy zpools with many different random access consumers at 90%.
I wouldn't do it without a SLOG but it is really only at 92%, these days, that we start to see performance really degrade.
YMMV.
- rincebrain 4y agoIn theory, the dedicated log metaslab[1] feature should help avoid that sort of problem in the same way, I think, and is in 2.1, with no slog required. I'd be curious if you're suggesting you're running something based on 2.1 and still finding you can run it fuller more reasonably. [1] - https://github.com/openzfs/zfs/commit/aa755b35493a2d27dbbc59f1527c6c93788b28f6 https://github.com/openzfs/zfs/commit/aa755b35493a2d27dbbc59...