Differences

This shows you the differences between two versions of the page.

--- computing:storage:zfs_perf [2020/05/07 12:02]
gcooper
+++ computing:storage:zfs_perf [2020/05/23 18:04] (current)
gcooper
@@ Line 1: / Line 1: @@
 ====== ZFS Performance Issues ======
-:!: **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.
+**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.
+<file>
+zpool iostat
+zpool iostat 2
+zpool iostat -v poolname 1
+</file>
 ===== Solaris 11.4 =====

Virtual Architects Support Wiki