PFS mirror problems
kusumi.tomohiro at gmail.com
Wed Aug 24 06:23:49 PDT 2016
BTW what I mean by unmounting is unmounting hammer, but not PFS (if
you've null mounted them somewhere or your dfly installer has done
2016-08-24 22:14 GMT+09:00 Tomohiro Kusumi <kusumi.tomohiro at gmail.com>:
> I first saw this in 2014 when I first used DragonFly (I think 3.8).
> It happened without upgrade or downgrade of PFS.
> Unmounting once and then mounting again made the slave PFS in sync with master.
> It may not be possible in your case as yours seem to be / fs.
> 2016-08-24 12:53 GMT+09:00 Lanir <lanir at cisns.net>:
>> I think I must have setup the mirroring incorrectly because nothing is
>> happening. I tried following the guide "how to implement hammer pseudo
>> file system( pfs ) slave mirroring from pfs master" on the website but
>> something appears to have gone wrong.
>> I have two 7.3tb hammer filesystems spread over two physical disks each
>> on the same system. I had problems creating the slave PFS so created it
>> as a master, demoted it, then altered the shared-uuid to match before
>> trying to mirror it. When I do a mirror-copy I get this result:
>> # hammer mirror-copy /usr/stor/backups /usr/backup-stor/pfs/backups
>> Mirror-read /usr/stor/backups succeeded
>> The data is obviously not being copied over:
>> # df -h /usr/stor /usr/backup-stor
>> Filesystem Size Used Avail Capacity Mounted on
>> stor1 7.3T 44G 7.2T 1% /usr/stor
>> backup-stor1 7.3T 1.0G 7.3T 0%
>> As far as I can tell they're setup correctly:
>> # hammer pfs-status /usr/stor/backups /usr/backup-stor/backups/ | egrep
>> operating as a MASTER
>> operating as a SLAVE
>> Can someone help point me towards the problem? I feel like I may have
>> missed something.
>> Thank you!
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