Sorry about the missing images above, I’m new and can’t post images. The post is pretty clear without them, the disk shows 3.5TB space but only 2.02TB are available in the dataset is the main thing I wanted to show.
Here is the output of zpool status
errors: No known data errors
pool: SSD
state: ONLINE
scan: scrub repaired 0B in 00:47:08 with 0 errors on Sun May 24 00:47:09 2026
config:
NAME STATE READ WRITE CKSUM
SSD ONLINE 0 0 0
aeea8f71-2e56-4254-a7a8-c4cf750a01a8 ONLINE 0 0 0
with more info:
{
"output_version": {
"command": "zpool status",
"vers_major": 0,
"vers_minor": 1
},
"pools": {
"SSD": {
"name": "SSD",
"state": "ONLINE",
"pool_guid": "11123894357344799630",
"txg": "1650912",
"spa_version": "5000",
"zpl_version": "5",
"scan_stats": {
"function": "SCRUB",
"state": "FINISHED",
"start_time": "Sun May 24 00:00:01 PDT 2026",
"end_time": "Sun May 24 00:47:09 PDT 2026",
"to_examine": "1.23T",
"examined": "1.23T",
"skipped": "8.70M",
"processed": "0B",
"errors": "0",
"bytes_per_scan": "0B",
"pass_start": "1781640943",
"scrub_pause": "-",
"scrub_spent_paused": "0",
"issued_bytes_per_scan": "0B",
"issued": "1.23T"
},
"vdevs": {
"SSD": {
"name": "SSD",
"vdev_type": "root",
"guid": "11123894357344799630",
"class": "normal",
"state": "ONLINE",
"alloc_space": "1.50T",
"total_space": "3.62T",
"def_space": "3.62T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vdevs": {
"aeea8f71-2e56-4254-a7a8-c4cf750a01a8": {
"name": "aeea8f71-2e56-4254-a7a8-c4cf750a01a8",
"vdev_type": "disk",
"guid": "17822921433360169900",
"path": "/dev/disk/by-partuuid/aeea8f71-2e56-4254-a7a8-c4cf750a01a8",
"class": "normal",
"state": "ONLINE",
"alloc_space": "1.50T",
"total_space": "3.62T",
"def_space": "3.62T",
"rep_dev_size": "3.63T",
"phys_space": "3.64T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"slow_ios": "0",
"vendor": "ATA",
"model": "Samsung SSD 870 QVO 4TB",
"size": "3.6T"
}
}
}
},
"error_count": "0"
}
}
}
And here’s the ZFS stuff:
zfs get all SSD
NAME PROPERTY VALUE SOURCE
SSD type filesystem -
SSD creation Thu Mar 12 15:54 2026 -
SSD used 1.50T -
SSD available 2.02T -
SSD referenced 104K -
SSD compressratio 1.00x -
SSD mounted yes -
SSD quota none default
SSD reservation none default
SSD recordsize 128K default
SSD mountpoint /mnt/SSD default
SSD sharenfs off default
SSD checksum on default
SSD compression lz4 local
SSD atime off local
SSD devices on default
SSD exec on default
SSD setuid on default
SSD readonly off default
SSD zoned off default
SSD snapdir hidden default
SSD aclmode discard local
SSD aclinherit discard local
SSD createtxg 1 -
SSD canmount on default
SSD xattr on local
SSD copies 1 default
SSD version 5 -
SSD utf8only off -
SSD normalization none -
SSD casesensitivity sensitive -
SSD vscan off default
SSD nbmand off default
SSD sharesmb off default
SSD refquota none default
SSD refreservation none default
SSD guid 11637701176162572888 -
SSD primarycache all default
SSD secondarycache all default
SSD usedbysnapshots 0B -
SSD usedbydataset 104K -
SSD usedbychildren 1.50T -
SSD usedbyrefreservation 0B -
SSD logbias latency default
SSD objsetid 54 -
SSD dedup off default
SSD mlslabel none default
SSD sync standard default
SSD dnodesize legacy default
SSD refcompressratio 1.00x -
SSD written 104K -
SSD logicalused 1.51T -
SSD logicalreferenced 46K -
SSD volmode default default
SSD filesystem_limit none default
SSD snapshot_limit none default
SSD filesystem_count none default
SSD snapshot_count none default
SSD snapdev hidden default
SSD acltype posix local
SSD context none default
SSD fscontext none default
SSD defcontext none default
SSD rootcontext none default
SSD relatime on default
SSD redundant_metadata all default
SSD overlay on default
SSD encryption off default
SSD keylocation none default
SSD keyformat none default
SSD pbkdf2iters 0 default
SSD special_small_blocks 0 default
SSD prefetch all default
SSD direct standard default
SSD longname off default
SSD defaultuserquota 0 -
SSD defaultgroupquota 0 -
SSD defaultprojectquota 0 -
SSD defaultuserobjquota 0 -
SSD defaultgroupobjquota 0 -
SSD defaultprojectobjquota 0 -
