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computing:storage:zfs_perf
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computing:storage:zfs_perf [2020/05/21 15:55] gcooper |
computing:storage:zfs_perf [2020/05/23 18:04] (current) gcooper |
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| ====== ZFS Performance Issues ====== | ====== ZFS Performance Issues ====== | ||
| - | Great summary for virtualization: | + | **Great summary for virtualization**: https:// |
| :!: **Only for VM storage or databases do you need or want to enable sync.** | :!: **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. | 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:// | ||
| + | |||
| + | :!: 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 ===== | ===== Solaris 11.4 ===== | ||
computing/storage/zfs_perf.1590098106.txt.gz · Last modified: 2020/05/21 15:55 by gcooper
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