File system data un-mounted?

[Albert Yang]

Hi,
i was currently looking at pyznap to send though SSH and it seemed to unmount my rpool data of my vms i tried rebooting the server and not sure what happend but the dataset seemed to got unmounted. i tried the following. whats odd is that the Vms are still working

root@prometheus4:~# zfs mount rpool/data/vm-109-disk-0

cannot open 'rpool/data/vm-109-disk-0': operation not applicable to datasets of this type

root@prometheus4:~# zfs get all rpool/data
NAME PROPERTY VALUE SOURCE
rpool/data type volume -
rpool/data creation Fri Jul 24 10:09 2020 -
rpool/data used 1.31T -
rpool/data available 2.43T -
rpool/data referenced 7.85G -
rpool/data compressratio 1.20x -
rpool/data reservation none default
rpool/data volsize 128G local
rpool/data volblocksize 8K default
rpool/data checksum on default
rpool/data compression on inherited from rpool
rpool/data readonly off default
rpool/data createtxg 9 -
rpool/data copies 1 default
rpool/data refreservation none default
rpool/data guid 8037406478648268761 -
rpool/data primarycache all default
rpool/data secondarycache all default
rpool/data usedbysnapshots 12.9M -
rpool/data usedbydataset 7.85G -
rpool/data usedbychildren 1.30T -
rpool/data usedbyrefreservation 0B -
rpool/data logbias latency default
rpool/data dedup off default
rpool/data mlslabel none default
rpool/data sync disabled inherited from rpool
rpool/data refcompressratio 1.24x -
rpool/data written 0 -
rpool/data logicalused 1.57T -
rpool/data logicalreferenced 9.71G -
rpool/data volmode default default
rpool/data snapshot_limit none default
rpool/data snapshot_count none default
rpool/data snapdev hidden default
rpool/data context none default
rpool/data fscontext none default
rpool/data defcontext none default
rpool/data rootcontext none default
rpool/data redundant_metadata all default

root@prometheus4:~# zfs get all rpool/data/vm-109-disk-0
NAME PROPERTY VALUE SOURCE
rpool/data/vm-109-disk-0 type volume -
rpool/data/vm-109-disk-0 creation Sat Jul 25 11:22 2020 -
rpool/data/vm-109-disk-0 used 7.90G -
rpool/data/vm-109-disk-0 available 2.43T -
rpool/data/vm-109-disk-0 referenced 7.85G -
rpool/data/vm-109-disk-0 compressratio 1.24x -
rpool/data/vm-109-disk-0 reservation none default
rpool/data/vm-109-disk-0 volsize 128G local
rpool/data/vm-109-disk-0 volblocksize 8K default
rpool/data/vm-109-disk-0 checksum on default
rpool/data/vm-109-disk-0 compression on inherited from rpool
rpool/data/vm-109-disk-0 readonly off default
rpool/data/vm-109-disk-0 createtxg 18095 -
rpool/data/vm-109-disk-0 copies 1 default
rpool/data/vm-109-disk-0 refreservation none default
rpool/data/vm-109-disk-0 guid 13967327577356581275 -
rpool/data/vm-109-disk-0 primarycache all default
rpool/data/vm-109-disk-0 secondarycache all default
rpool/data/vm-109-disk-0 usedbysnapshots 51.5M -
rpool/data/vm-109-disk-0 usedbydataset 7.85G -
rpool/data/vm-109-disk-0 usedbychildren 0B -
rpool/data/vm-109-disk-0 usedbyrefreservation 0B -
rpool/data/vm-109-disk-0 logbias latency default
rpool/data/vm-109-disk-0 dedup off default
rpool/data/vm-109-disk-0 mlslabel none default
rpool/data/vm-109-disk-0 sync disabled inherited from rpool
rpool/data/vm-109-disk-0 refcompressratio 1.24x -
rpool/data/vm-109-disk-0 written 27.5M -
rpool/data/vm-109-disk-0 logicalused 9.80G -
rpool/data/vm-109-disk-0 logicalreferenced 9.71G -
rpool/data/vm-109-disk-0 volmode default default
rpool/data/vm-109-disk-0 snapshot_limit none default
rpool/data/vm-109-disk-0 snapshot_count none default
rpool/data/vm-109-disk-0 snapdev hidden default
rpool/data/vm-109-disk-0 context none default
rpool/data/vm-109-disk-0 fscontext none default
rpool/data/vm-109-disk-0 defcontext none default
rpool/data/vm-109-disk-0 rootcontext none default
rpool/data/vm-109-disk-0 redundant_metadata all default

root@prometheus4:~# zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 1.77T 2.43T 104K /rpool
rpool/ROOT 479G 2.43T 96K /rpool/ROOT
rpool/ROOT/pve-1 479G 2.43T 479G /
rpool/data 1.31T 2.43T 7.85G -

root@prometheus4:~# zfs get mounted,mountpoint rpool/data
NAME PROPERTY VALUE SOURCE
rpool/data mounted - -
rpool/data mountpoint - -