gmirror device numbers
toomas.aas at raad.tartu.ee
Wed Apr 11 07:01:03 UTC 2007
I have a server with gmirror volumes. Backup of this server is being done
with Amanda, which uses GNU tar and its --listed-incremental option
(snapshot files) in order to do incremental backups.
It seems that gmirror devices get a different 'device number' on each boot
(each time the gmirror is created). Since the device number is stored in
GNU tar's snapshot file, it effectively means that after rebooting GNU tar
sees all files as having been changed since previous backup. This causes
huge incremental backups.
Is there a way to force a gmirror device to have a 'fixed' device number?
More information about the freebsd-questions