My ZFS server sits in a corner and does its thing pretty well. It gets little attention, but it was past time to upgrade from FreeBSD 10.2.
So I exported the tank, broke the root gmirror, installed a fresh copy of FreeBSD 12.0, imported and upgraded the tank, and re-made the root gmirror.
I have never made any specific tuning changes to ZFS, as it has always worked well.
Scrubbing the 10 TiB tank (5.2 TiB used) is now three times faster. Here is the summary from "zpool status" before and after:
That's an improvement! Sadly, it's too late to benchmark anything else.
So I exported the tank, broke the root gmirror, installed a fresh copy of FreeBSD 12.0, imported and upgraded the tank, and re-made the root gmirror.
I have never made any specific tuning changes to ZFS, as it has always worked well.
Scrubbing the 10 TiB tank (5.2 TiB used) is now three times faster. Here is the summary from "zpool status" before and after:
Code:
FreeBSD 10.2-RELEASE-p16 (GENERIC) #0: Wed May 4 07:38:23 UTC 2016
scan: scrub repaired 0 in 1 days 01:24:20 with 0 errors on Sat Mar 2 22:24:21 2019
FreeBSD 12.0-RELEASE r341666 GENERIC
scan: scrub repaired 0 in 0 days 08:26:12 with 0 errors on Thu Mar 21 20:55:05 2019That's an improvement! Sadly, it's too late to benchmark anything else.