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computing:storage:zfs_perf

ZFS Performance Issues

Great summary for virtualization: https://youtu.be/fo3EGuCszpE

:!: Only for VM storage or databases do you need or want to enable sync.

If you simply use ZFS without foreign filesystems on it (VMs), ZFS will never corrupt on a crash due Copy On Write. So for regular filer use, disable sync unless you want a maximal security for small files like on a mailserver.

IOStat

https://docs.oracle.com/cd/E19253-01/819-5461/gammt/index.html

:!: Statistics are cumulative since boot, so specify an interval for more useful stats.

zpool iostat
zpool iostat 2
zpool iostat -v poolname 1

Solaris 11.4

It's much faster than OmniOS with OpenZFS.

Why Intel Optane

NVMe Hardware

:!: PCIe 3.0 x8 low-profile card

Mount two M.2 800P as mirrored SLOG:

https://www.supermicro.nl/products/accessories/addon/AOC-SLG3-2M2.cfm

computing/storage/zfs_perf.txt · Last modified: 2020/05/23 18:04 by gcooper