Maintenance of mirrored filesystem

[John R. Shannon]

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/backups/dns
>> /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/backups/imap
>> /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 cleaned
> 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 cleaning
> 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