[OpenIndiana-discuss] how to stop a zfs resilver

[Udo Grabowski (IMK)]

On 05/06/2014 12:05, John McEntee wrote:
> I have a production system so I should have tried this at the weekend but is it a 3 way mirror across 7 vdevs (is that the right term), see below.
>
> I started of the resilver yesterday, but it is have too much of a performance penalty on of the of VMWARE windows machines. I tried to reduce the priority with
>
> echo zfs_resilver_delay/w8 | mdb -kw
> echo zfs_resilver_min_time_ms/W0t100|mdb -kw
>
> but that did not have a big enough affect.  Next  I tried to stop the resilver so I could run it over the weekend it by running offline but the resilver is still happening. Any idea how I stop it?

This is what we use in /etc/system :

set zfs:zfs_resilver_delay = 0
set zfs:zfs_scrub_delay = 0
set zfs:zfs_top_maxinflight = 128
set zfs:zfs_resilver_min_time_ms = 5000

Resilver went down from 14 days for a 2 TB disk to 7 hours.


-- 
Dr.Udo Grabowski    Inst.f.Meteorology a.Climate Research IMK-ASF-SAT
http://www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology            http://www.kit.edu
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