[OpenIndiana-discuss] Recovering from power loss on USB ZFS pool?
pulaskite at yahoo.com
Fri Mar 28 15:33:15 UTC 2014
I'm referencing a rather different situation. Dropping power to a drive while you're writing to it is quite different from breaking a mirror and moving the disk to another machine. I've done this a couple of times, once because the wall wart was on the wall rather than on a power strip and got bumped. This time it was on a power strip that was hard to access and even harder to see what I was doing. So I unplugged the wrong one.
I've not had a problem dropping power to the system when it wedges, but I have long standing nervousness about forcing systems down in that fashion. So a cleaner solution would be nice.
First priority of course is to not pull the USB power until after the pool has been exported ;-)
I'd be quite interested in how you handled the device naming problem. I beat myself silly a couple of years ago trying to find a clean way to replicate a zfs pool based system image. In the end I gave up and just did manual installs.
On Fri, 3/28/14, Michael Stapleton <michael.stapleton at techsologic.com> wrote:
Subject: Re: [OpenIndiana-discuss] Recovering from power loss on USB ZFS pool?
To: "Discussion list for OpenIndiana" <openindiana-discuss at openindiana.org>
Date: Friday, March 28, 2014, 10:04 AM
I'm not sure when things changed, but
way back in the OpenSolaris days,
I had the root drive in my laptop mirrored to an external
I never had problems back then. I would do a demonstration
where I would
remove the USB drive while the laptop was up and running,
and then plug
the USB submirror into another laptop and boot from it.
Never had a problem. I could even reattach the USB drive to
and it would resilver automatically.
Is the problem ZFS or USB or FMA? no idea. But the was a
I don't think Solaris11 suffers from this.
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