Public bug reported:
# Environment
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Linux 4.10.0-38-generic-tuxonice #42~ppa1-Ubuntu SMP Mon Oct 30 20:21:41
UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
zfsutils-linux 0.6.5.6-0ubuntu18 amd64
# Current behaviour
`/usr/lib/zfs-linux/scrub` starts `zfs scrub` on all pools at the same
time. If pools are located on the same disk - scrub performance degrades
badly.
# Proposed behaviour
* simplest one - start scrub of one pool after another scrub is finished
* advanced - detect pools which are located on the same disk and start scrubs
on them sequentially, if they are on different disks it is fine to run them in
parallel
** Affects: zfs-linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1731735
Title:
zfs scrub starts on all pools simultaneously
Status in zfs-linux package in Ubuntu:
New
Bug description:
# Environment
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Linux 4.10.0-38-generic-tuxonice #42~ppa1-Ubuntu SMP Mon Oct 30
20:21:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
zfsutils-linux 0.6.5.6-0ubuntu18 amd64
# Current behaviour
`/usr/lib/zfs-linux/scrub` starts `zfs scrub` on all pools at the same
time. If pools are located on the same disk - scrub performance
degrades badly.
# Proposed behaviour
* simplest one - start scrub of one pool after another scrub is finished
* advanced - detect pools which are located on the same disk and start scrubs
on them sequentially, if they are on different disks it is fine to run them in
parallel
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1731735/+subscriptions
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