Re: ZFS Root size keeps going down after upgrade to 13.2-release

From: Kaya Saman <kayasaman_at_optiplex-networks.com>
Date: Mon, 21 Aug 2023 13:34:04 UTC
On 8/21/23 14:23, freebsd@vanderzwan.org wrote:
>
>> On 21 Aug 2023, at 15:14, Kaya Saman <kayasaman@optiplex-networks.com> wrote:
>>
>>
>> On 8/21/23 14:07, freebsd@vanderzwan.org wrote:
>>>> On 21 Aug 2023, at 14:21, Kaya Saman <kayasaman@optiplex-networks.com> wrote:
>>>> # zfs list -ro space zroot/ROOT
>>>> NAME                                          AVAIL   USED USEDSNAP  USEDDS  USEDREFRESERV  USEDCHILD
>>>> zroot/ROOT                                     720M  88.5G 0B     88K             0B      88.5G
>>>> zroot/ROOT/13.1-RELEASE-p5_2023-08-20_220010   720M     8K 0B      8K             0B         0B
>>>> zroot/ROOT/13.2-RELEASE-p2_2023-08-20_224534   720M     8K 0B      8K             0B         0B
>>>> zroot/ROOT/default                             720M  88.5G 52.0G   36.5G             0B         0B
>>>>
>>> That last line seems to indicate there is 52.0 G used in snapshots of zroot/ROOT/default and 36.5G in the dataset itself.
>>> Output of zfs list -o  space -t snapshot |grep zroot/ROOT/default should give a list of the snapshots and the sizes.
>>>
>>> 	Paul
>>>
>>>
>> Thanks so much Paul.... I feel like I'm spinning around in circles currently...
>>
>>
>> There doesn't seem to be anything indicative of that space being used up?
>>
>>
>>   zfs list -o  space -t snapshot |grep zroot/ROOT/defaul
>> zroot/ROOT/default@2022-11-28-06:08:26-0      -   583M -       -              -          -
>> zroot/ROOT/default@2022-11-28-06:38:48-0      -  11.4M -       -              -          -
>> zroot/ROOT/default@2022-11-28-07:26:20-0      -  9.41M -       -              -          -
>> zroot/ROOT/default@2023-08-20-22:00:10-0      -  34.5M -       -              -          -
>> zroot/ROOT/default@2023-08-20-22:45:34-0      -  9.56M -       -              -          -
>>
>>
>> certainly not 52GB?
>>
>>
> That’s definitely confusing.
> What’s the full output of 'zfs list -o space -r zroot’  and of 'zpool list  -v zroot’
>
> 	Paul
>
>

Here are the outputs:


zfs list -o space -r zroot
NAME                                          AVAIL   USED USEDSNAP  
USEDDS  USEDREFRESERV  USEDCHILD
zroot                                          720M   107G 0B   
2.20G             0B       105G
zroot/ROOT                                     720M  88.5G 0B     
88K             0B      88.5G
zroot/ROOT/13.1-RELEASE-p5_2023-08-20_220010   720M     8K 0B      
8K             0B         0B
zroot/ROOT/13.2-RELEASE-p2_2023-08-20_224534   720M     8K 0B      
8K             0B         0B
zroot/ROOT/default                             720M  88.5G 52.0G   
36.5G             0B         0B
zroot/swap                                    3.78G  6.19G 0B   
3.11G          3.08G         0B
zroot/tmp                                      720M   121M 0B    
121M             0B         0B
zroot/usr                                      720M  7.09G 0B     
88K             0B      7.09G
zroot/usr/home                                 720M    88K 0B     
88K             0B         0B
zroot/usr/obj                                  720M  4.75G 0B   
4.75G             0B         0B
zroot/usr/ports                                720M   432K 0B    
176K             0B       256K
zroot/usr/ports/distfiles                      720M   168K 0B    
168K             0B         0B
zroot/usr/ports/packages                       720M    88K 0B     
88K             0B         0B
zroot/usr/src                                  720M  2.35G 0B   
2.35G             0B         0B
zroot/var                                      720M  2.60G 0B     
88K             0B      2.60G
zroot/var/audit                                720M    88K 0B     
88K             0B         0B
zroot/var/backups                              720M   141M 0B    
141M             0B         0B
zroot/var/crash                                720M    88K 0B     
88K             0B         0B
zroot/var/db                                   720M  1.69G 0B   
1.59G             0B      94.8M
zroot/var/db/pkg                               720M  94.8M 0B   
94.8M             0B         0B
zroot/var/empty                                720M    88K 0B     
88K             0B         0B
zroot/var/log                                  720M   792M 0B    
792M             0B         0B
zroot/var/mail                                 720M  3.96M 0B   
3.96M             0B         0B
zroot/var/run                                  720M   248K 0B    
248K             0B         0B
zroot/var/tmp                                  720M   672K 0B    
672K             0B         0B


  zpool list  -v zroot
NAME         SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP 
DEDUP    HEALTH  ALTROOT
zroot        111G   104G  7.22G        -         -    82%    93% 
1.00x    ONLINE  -
   mirror-0   111G   104G  7.22G        -         -    82% 93.5%      
-    ONLINE
     ada0p3   111G      -      -        -         -      - -      -    
ONLINE
     ada1p3   111G      -      -        -         -      - -      -    
ONLINE