Date: Sun, 30 May 2010 19:40:00 -0500 From: Kirk Strauser <kirk@strauser.com> To: Christof Schulze <christof.schulze@gmx.com> Cc: freebsd-stable@freebsd.org Subject: Re: Make ZFS auto-destroy snapshots when the out of space? Message-ID: <613D3C80-85F6-4A52-8C33-7F5AF18A3A2E@strauser.com> In-Reply-To: <201005310234.47363.christof.schulze@gmx.com> References: <4C017419.9010909@strauser.com> <4F444333-C839-4C2F-AA5D-1898192DDE93@strauser.com> <201005310208.22387.christof.schulze@gmx.com> <201005310234.47363.christof.schulze@gmx.com>
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On May 30, 2010, at 7:34 PM, Christof Schulze wrote: > still struggling with the attachment remover. So here is the script: > > http://paste.pocoo.org/show/220207/ That's pretty similar in concept to the scripts I found and am using, but with the difference that those scripts use "zfs snapshot -r" to take a recursive, atomic snapshot of all filesystems in the configured pools. I wrote a separate script to prune all the unwanted filesystems (/tmp, and so on) regularly: #!/bin/sh # If there is a global system configuration file, suck it in. # if [ -r /etc/defaults/periodic.conf ] then . /etc/defaults/periodic.conf source_periodic_confs fi filesystems=$hourly_zfs_snapshot_prune_filesystems case "$hourly_zfs_snapshot_prune_enable" in [Yy][Ee][Ss]) if [ -z "$filesystems" ]; then echo "Hourly snapshot pruning is enabled but not configured." exit 2 fi for filesystem in $filesystems ; do zfs list -H -o name -t snapshot | grep -E "^ $filesystem@(hourly|daily|weekly|monthly)" | xargs -n1 zfs destroy done ;; *) ;; esac -- Kirk Strauser
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