ZFS Problem - full disk, can't recover space :(.
Dr Josef Karthauser
josef.karthauser at unitedlane.com
Sun Mar 27 07:13:18 UTC 2011
On 26 Mar 2011, at 21:54, Alexander Leidinger wrote:
>> Any idea on were the 23G has gone, or how I pursuade the zpool to
>> return it? Why is the filesystem referencing storage that isn't being
>> used?
>
> I suggest a
> zfs list -r -t all void/store
> to make really sure we/you see what we want to see.
>
> Can it be that an application has the 23G still open?
>
>> p.s. this is FreeBSD 8.2 with ZFS pool version
>> 15.
>
> The default setting of showing snapshots or not changed somewhere. As
> long as you didn't configure the pool to show snapshots (zpool get
> listsnapshots <pool>), they are not shown by default.
Definitely no snapshots:
infinity# zfs list -tall
NAME USED AVAIL REFER MOUNTPOINT
void 99.1G 24.8G 2.60G legacy
void/home 33.5K 24.8G 33.5K /home
void/j 87.5G 24.8G 54K /j
void/j/buttsby 136M 9.87G 2.40M /j/buttsby
void/j/buttsby/home 34.5K 9.87G 34.5K /j/buttsby/home
void/j/buttsby/local 130M 9.87G 130M /j/buttsby/local
void/j/buttsby/tmp 159K 9.87G 159K /j/buttsby/tmp
void/j/buttsby/var 3.97M 9.87G 104K /j/buttsby/var
void/j/buttsby/var/db 2.40M 9.87G 1.55M /j/buttsby/var/db
void/j/buttsby/var/db/pkg 866K 9.87G 866K /j/buttsby/var/db/pkg
void/j/buttsby/var/empty 21K 9.87G 21K /j/buttsby/var/empty
void/j/buttsby/var/log 838K 9.87G 838K /j/buttsby/var/log
void/j/buttsby/var/mail 592K 9.87G 592K /j/buttsby/var/mail
void/j/buttsby/var/run 30.5K 9.87G 30.5K /j/buttsby/var/run
void/j/buttsby/var/tmp 23K 9.87G 23K /j/buttsby/var/tmp
void/j/legacy-alpha 56.6G 3.41G 56.6G /j/legacy-alpha
void/j/legacy-brightstorm 29.2G 10.8G 29.2G /j/legacy-brightstorm
void/j/legacy-obleo 1.29G 1.71G 1.29G /j/legacy-obleo
void/j/mesh 310M 3.70G 2.40M /j/mesh
void/j/mesh/home 21K 3.70G 21K /j/mesh/home
void/j/mesh/local 305M 3.70G 305M /j/mesh/local
void/j/mesh/tmp 26K 3.70G 26K /j/mesh/tmp
void/j/mesh/var 2.91M 3.70G 104K /j/mesh/var
void/j/mesh/var/db 2.63M 3.70G 1.56M /j/mesh/var/db
void/j/mesh/var/db/pkg 1.07M 3.70G 1.07M /j/mesh/var/db/pkg
void/j/mesh/var/empty 21K 3.70G 21K /j/mesh/var/empty
void/j/mesh/var/log 85K 3.70G 85K /j/mesh/var/log
void/j/mesh/var/mail 24K 3.70G 24K /j/mesh/var/mail
void/j/mesh/var/run 28.5K 3.70G 28.5K /j/mesh/var/run
void/j/mesh/var/tmp 23K 3.70G 23K /j/mesh/var/tmp
void/local 282M 1.72G 282M /local
void/mysql 22K 78K 22K /mysql
void/tmp 55K 2.00G 55K /tmp
void/usr 1.81G 2.19G 275M /usr
void/usr/obj 976M 2.19G 976M /usr/obj
void/usr/ports 289M 2.19G 234M /usr/ports
void/usr/ports/distfiles 54.8M 2.19G 54.8M /usr/ports/distfiles
void/usr/ports/packages 21K 2.19G 21K /usr/ports/packages
void/usr/src 311M 2.19G 311M /usr/src
void/var 6.86G 3.14G 130K /var
void/var/crash 22.5K 3.14G 22.5K /var/crash
void/var/db 6.86G 3.14G 58.3M /var/db
void/var/db/mysql 6.80G 3.14G 4.79G /var/db/mysql
void/var/db/mysql/innodbdata 2.01G 3.14G 2.01G /var/db/mysql/innodbdata
void/var/db/pkg 2.00M 3.14G 2.00M /var/db/pkg
void/var/empty 21K 3.14G 21K /var/empty
void/var/log 642K 3.14G 642K /var/log
void/var/mail 712K 3.14G 712K /var/mail
void/var/run 49.5K 3.14G 49.5K /var/run
void/var/tmp 27K 3.14G 27K /var/tmp
This is the problematic filesystem:
void/j/legacy-alpha 56.6G 3.41G 56.6G /j/legacy-alpha
No chance that an application is holding any data - I rebooting and came up
in single user mode to try and get this resolved, but no cookie.
Joe
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