DragonFly users List (threaded) for 2010-04
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Re: Disabling snapshot symlinks during manual snapshot
:/Backup1/pfs/www-hot /Backup1/www-5mbak/www-hot null rw
: 0 0
:
:/Backup1/pfs/@@-1:00005 454G 287G 168G 63%
:/Backup1/www-5mbak/www-hot
:
:Now I run cron every 5 mins to execute a script that rsyncs files from
:the main development server and then snapshot the pfs to
:/Backup1/www-5mbak
Make sure your cron job runs the rsync under a lockf. e.g.:
*/5 * * * * lockf -kt 0 /root/adm/.lock1 rsync ....
Otherwise any long syncs or other issues can cause rsyncs to build
up.
:I shared /Backup1/www-5mbak read only using samba and the developers
:can now get 5mis backup of any file for 2 days.
I'm not I understand. So the snapshots in this subdirectory are
softlinks using absolute paths to the original directory with
an @@ extension? Otherwise they might not be able to access the
snapshot.
:To give them a daily backup access the same way I guess i will have to
:configure a mirror and configure daily snapshots for them right?
You can use the same mirror and just pick out or generate daily
softlinks. You don't need to configure another one. I'm not
entirely sure how you'd make sure the softlinks track the actual
snapshots in terms of snapshot retirement as the hammer utility
only tracks one snapshot directory.
:I might get rid of backuppc if I can store at least 2 years worth of
:Daily backups like this.
You always want a backup on some other machine somewhere, no matter
what.
:Is there any way to find the space used by a single PFS and the space
:used by its snapshots ?
:
:Thanks
:
:--Siju
No, someone would have to write a feature in the hammer utility to
calculate it.
-Matt
Matthew Dillon
<dillon@backplane.com>
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