[kwlug-disc] ZFS pool says it's 100% full according df -h and yet I know there is space as I have remove a lot of files...

[Federer Fanatic]

Looks like some fragmentation is occurring...presumably because disk was
getting full, I read
that having dedup setting on can cause some issues, but my
zfs get all |grep dedup
homedirs                                       dedup                 off
                 default




--------------------------------------------------------------
 Roger Federer Fanatic Extraordinaire :-)


On Sun, Dec 29, 2019 at 8:23 AM Federer Fanatic <nafdef at gmail.com> wrote:

> Also zfs get all has a constant stream of output...
>
>
>
> --------------------------------------------------------------
>  Roger Federer Fanatic Extraordinaire :-)
>
>
> On Sun, Dec 29, 2019 at 8:19 AM Federer Fanatic <nafdef at gmail.com> wrote:
>
>> Specifically,  zpool status
>>
>>
>>   pool: homedirs
>>  state: ONLINE
>>   scan: scrub repaired 0B in 0 days 03:57:48 with 0 errors on Sun Dec  8
>> 04:21:49 2019
>> config:
>>
>>
>>
>> zpool status yields:
>>
>> NAME        STATE     READ WRITE CKSUM
>> homedirs    ONLINE       0     0     0
>>  mirror-0  ONLINE       0     0     0
>>    sda     ONLINE       0     0     0
>>    sdb     ONLINE       0     0     0
>>
>>
>>
>>
>>
>>
>> # zpool list homedirs
>>
>> NAME       SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP
>>  HEALTH  ALTROOT
>> homedirs  1.81T  1.76T    57.7G                 -                    -
>>  27%      96%  1.00x        ONLINE  -
>>
>> which show 1.76 TB. It looks like space is being locked down somehow and
>> is unavailable and yet
>>
>> and yet
>>
>> # df -h
>> homedirs                                      890G  890G     0 100%
>> /homedirs
>>
>> It's as if the volume is shrinking as a I remove files...
>>
>> NOTE. It may have something to do with snapshots sanoid settings:
>> as I am also seeing the mount
>>
>> Filesystem
>>   Size  Used Avail Use%   Mounted on
>> homedirs at autosnap_2019-12-26_05:00:22_hourly  1.7T  1.7T       0 100%
>> /homedirs/.zfs/snapshot/autosnap_2019-12-26_05:00:22_hourly
>>
>> ---this goes away if I run systemctl stop sanoid.timer however,
>> df -h still yes same output as above
>>
>>
>> NOTE. the 1.7TB
>>
>> Also removing files from ZFS takes an eternity.
>>
>> I am obviously not understanding something.
>>
>>
>>
>>
>> --------------------------------------------------------------
>>  Roger Federer Fanatic Extraordinaire :-)
>>
>
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