Maintenance of mirrored filesystem
zachary.crownover at gmail.com
Fri Dec 15 11:24:51 PST 2017
Also turning on dedup can save space
On Dec 15, 2017 10:50 AM, "John R. Shannon" <john at johnrshannon.com> wrote:
> Thank you. That got it.
> On 12/15/17 10:49, Tim Darby wrote:
> > On Fri, Dec 15, 2017 at 8:24 AM, John R. Shannon <john at johnrshannon.com>
> > wrote:
> >> I setup hammer filesystems on identical disk drives. I created a number
> >> of PFS that are mirrored. Over time, the storage allocation on the
> >> MASTER has remained constant while it continues to grow on the SLAVE as
> >> shown in the following:
> >> MASTER 5588G 1456G 4132G 26% /master
> >> SLAVE 5588G 2775G 2813G 50% /slave
> >> /master/pfs/@@-1:00002 5588G 1456G 4132G 26%
> >> /master/pfs/@@-1:00001 5588G 1456G 4132G 26%
> >> /master/backups/colleen
> >> /master/pfs/@@-1:00003 5588G 1456G 4132G 26%
> >> /master/backups/domain0
> >> /master/pfs/@@-1:00004 5588G 1456G 4132G 26%
> >> /master/pfs/@@-1:00005 5588G 1456G 4132G 26% /master
> >> ...
> >> Am I missing a maintenance step that needs to be performed on the slave?
> > By default, the daily periodic script for hammer cleanup only works on
> > mounted volumes, so that's why your unmounted slaves are not being
> > up. You can tell it to clean up unmounted volumes by adding this line to
> > /etc/periodic.conf:
> > daily_clean_hammer-pfslist="path_to_first_unmounted_pfs
> > path_to_second_unmounted_pfs etc"
> > The unfortunate side effect of this is that will cause it to stop
> > up mounted PFSes, so I created a separate hammer cleanup script in
> > /etc/periodic/daily that cleans up the mounted ones.
> > Tim
> John R. Shannon
> john at johnrshannon.com
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Hammer