dump_snapshot file
Warren Block
wblock at wonkity.com
Wed Oct 7 13:49:05 UTC 2009
On Wed, 7 Oct 2009, Philip Jocks wrote:
> I had a file /usr/.snap/dump_snapshot being about 15GB in size, which I
> removed because the partition was filling up.
> The file's date was always rather current, so I'm wondering, what it was for?
> I did do a level 0 dump with -0 and -Lau parameters a few weeks ago and
> always do dumps on other boxes, but never saw a file in the .snap directory
> growing. For the other partitions, there are no such files, that's why I'm
> wondering.
> Maybe someone can shed some light on this for me.
man -P 'less +/-L' dump
explains it a bit. The snapshot file is supposed to go away after dump
completes, but in your case dump died or was killed before it unlinked
the file.
On small filesystems, -L is quick enough to not make a noticeable
difference. /usr can be huge, and there's a long pause while it makes
that snapshot and doesn't seem to be doing anything useful.
-Warren Block * Rapid City, South Dakota USA
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