I've got 16TB of data, and I'm almost out of space on 24x 2TB SAS drives. This doesn't seem right to me. I should have...
24 disk -4 lost to raidz2 vdevs = 20 disks @ 2TB = 40TB - 1/64th for ZFS = ~39.3TB
39.3TB - 1.1TB snapshots = 38.2TB
So... 38.2TB, give or take. Instead, I've got less than half of that. Where did my free space all go?
24 disk -4 lost to raidz2 vdevs = 20 disks @ 2TB = 40TB - 1/64th for ZFS = ~39.3TB
39.3TB - 1.1TB snapshots = 38.2TB
So... 38.2TB, give or take. Instead, I've got less than half of that. Where did my free space all go?
Code:
[root@nas ~]# df -h|grep -v tmpfs|grep -v datastore|grep -v /dev
Filesystem Size Used Avail Use% Mounted on
pool 18T 16T 2.1T 88% /pool
[root@nas ~]# zpool list pool
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
pool 43.5T 40.3T 3.19T 92% 1.00x ONLINE -
[root@nas ~]# zfs list pool
NAME USED AVAIL REFER MOUNTPOINT
pool 33.4T 2.08T 15.0T /pool
[root@nas ~]# zpool status pool
pool: pool
state: ONLINE
status: The pool is formatted using a legacy on-disk format. The pool can
still be used, but some features are unavailable.
action: Upgrade the pool using 'zpool upgrade'. Once this is done, the
pool will no longer be accessible on software that does not support
feature flags.
scan: scrub repaired 0 in 9h53m with 0 errors on Sat Mar 21 09:54:16 2015
config:
NAME STATE READ WRITE CKSUM
pool ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
scsi-35000c50034f36cff ONLINE 0 0 0
scsi-35000c50034eb58bb ONLINE 0 0 0
scsi-35000c50034f44577 ONLINE 0 0 0
scsi-35000c50034e85e4b ONLINE 0 0 0
scsi-35000c50034f422b7 ONLINE 0 0 0
scsi-35000c50034e85c3f ONLINE 0 0 0
scsi-35000c50040cf0c4f ONLINE 0 0 0
scsi-35000c500409ae567 ONLINE 0 0 0
scsi-35000c500409946ff ONLINE 0 0 0
scsi-35000c5003c95a907 ONLINE 0 0 0
scsi-35000c50034fbe17b ONLINE 0 0 0
scsi-35000c50034f3dfc7 ONLINE 0 0 0
raidz2-1 ONLINE 0 0 0
scsi-35000c50034f3cc5f ONLINE 0 0 0
scsi-35000c50034f3e81f ONLINE 0 0 0
scsi-35000c50034ea0857 ONLINE 0 0 0
scsi-35000c50034ff6167 ONLINE 0 0 0
scsi-35000c50034f3decf ONLINE 0 0 0
scsi-35000c50034f421c7 ONLINE 0 0 0
scsi-35000c50034f3daeb ONLINE 0 0 0
scsi-35000c50034ff1b8b ONLINE 0 0 0
scsi-35000c50034f42db7 ONLINE 0 0 0
scsi-35000c50034f3d3ab ONLINE 0 0 0
scsi-35000c50034e011d3-part1 ONLINE 0 0 0
scsi-35000c5003c95abdf ONLINE 0 0 0
errors: No known data errors
[root@nas ~]# zfs list -t snapshot
NAME USED AVAIL REFER MOUNTPOINT
pool@2015-02-13 3.23G - 14.3T -
pool@2015-02-14 2.07G - 14.3T -
pool@2015-02-15 3.19G - 14.3T -
pool@2015-02-25 1.95G - 14.4T -
pool@2015-02-26 1.45G - 14.4T -
pool@2015-02-27 1.68G - 14.4T -
pool@2015-02-28 2.10G - 14.4T -
pool@2015-03-01 1.61G - 14.4T -
pool@2015-03-02 1.21G - 14.4T -
pool@2015-03-03 1.46G - 14.4T -
pool@2015-03-04 3.29G - 14.5T -
pool@2015-03-05 2.13G - 14.5T -
pool@2015-03-06 2.44G - 15.5T -
pool@2015-03-07 4.14G - 15.5T -
pool@2015-03-08 2.02G - 14.6T -
pool@2015-03-09 1.97G - 14.6T -
pool@2015-03-10 37.7G - 14.7T -
pool@2015-03-11 9.69G - 14.7T -
pool@2015-03-12 1.94G - 14.8T -
pool@2015-03-13 2.23G - 14.7T -
pool@2015-03-18 25.8G - 14.8T -
pool@2015-03-19 148G - 14.9T -
pool@2015-03-20 8.63M - 14.8T -
pool@2015-03-21 28.9M - 15.2T -
pool@2015-03-22 33.6M - 15.5T -
pool@2015-03-23 54.6M - 15.6T -
pool@2015-03-24 416G - 15.5T -
pool@2015-03-25 401G - 5.86T -
pool@2015-03-26 0 - 15.0T -