Date: Fri, 21 Nov 2008 13:39:20 +0000 From: Pete French <petefrench@ticketswitch.com> To: freebsd-stable@freebsd.org Subject: Curious failure of ZFS snapshots Message-ID: <E1L3WEC-0000SM-No@dilbert.ticketswitch.com>
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I have a couple of boxes here which make daily snapshots of their filesystems. One just makes a snapshot at 7am, called '7am' which it does by deleting the previous days and making a new one called '7am'. The other has snapshots called 'today', 'yesterday', '2daysago' etc, up to a week. It does this by deleting the '5daysago' snapshot, renaming all the others to shuffle them down by one, and then creating a new snapshot for 'today'. On the box with the snapshots being created every day with the same name I quickly end up with unavailable snapshots, and the error message: 'Bad file descriptor'. On the machine which is creating dailys which do not have the same name this does not happen. Interesting - and unexpected. The machines are running identical kernels, being 7-STABLE form a few days ago. -pete.
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