Date: Wed, 28 Dec 2016 08:03:35 +0100 From: Ben RUBSON <ben.rubson@gmail.com> To: fs@FreeBSD.org Subject: Force ZFS to always look for devices in a defined location Message-ID: <4E030EC6-39AC-484C-BA53-2C8CA0E79B84@gmail.com>
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Hello,
My zpools are made of devices from /dev/label.
Example :
NAME STATE READ WRITE CKSUM
my-zpool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
label/slotone ONLINE 0 0 0
label/slottwo ONLINE 0 0 0
(...)
For some reasons, it may happen that access to some devices fails and devices (quickly) toggle between ONLINE and UNAVAIL/REMOVED state.
Then, sometimes, ZFS re-use the device using the /dev/da path, instead of waiting for the /dev/label path to be rediscovered by the system.
It then leads to something like this, with is not nice, and not really correct (as last sector of /dev/da contains the label) :
NAME STATE READ WRITE CKSUM
my-zpool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
label/slotone ONLINE 0 0 0
da14 ONLINE 0 0 0
(...)
My question is then, how to force ZFS to look for devices in a defined location ?
(/dev/label/ in this example)
I tried to offline / online impacted devices (da*), but it does not work, they do not come back with their /dev/label path.
Zpool export / import works, but of course this is something we would like to avoid.
Many thanks !
Ben
help
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