DragonFly users List (threaded) for 2011-01
Re: Snapshots maintenance
On Tue, Jan 4, 2011 at 6:50 PM, Francisco Reyes <firstname.lastname@example.org> wrote:
> How does one adjust the number of snapshots for hammer to keep?
> In the man page it says:
> HAMMER version 3+
> The configuration file is saved in file system meta-data
> The format of the configuration file is:
> snapshots <period> <retention-time> [any]
> What ist he name of the configuration file?
> .snapshots.period ? That files does not seem human readable/editable.
hammer config /path/to/pfs
will show the contents on the conf file to edit it use
hammer viconfig /path/to/pfs
> To delete a snapshot do I just delete the link and prune?
no thant won't work with ver 3
snaprm path ...
snaprm transid ...
snaprm filesystem transid ...
(HAMMER VERSION 3+) Remove a snapshot given its softlink or
transaction id. If specifying a transaction id the snapshot is
removed from file system meta-data but you are responsible for
removing any related softlinks.
If a softlink path is specified the filesystem and transaction id
is derived from the contents of the softlink. If just a transac-
tion id is specified it is assumed to be a snapshot in the HAMMER
filesystem you are currently chdir'd into. You can also specify
the filesystem and transaction id explicitly.
Edit config file and prune
> Don't see any difference in df. When/how is the space regained?
> Had a lot of extra data so now that I cleaned things up I want to delete the
> snapshots with the extra data to get the space back.
after pruning you need to reblock to gain space
hope this helps :-)