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Operating Systems Solaris ZFS Issues
# 1  
Old 03-09-2011
ZFS Issues
Hi, I am nowusing ZFS since some weeks and now I have 2 questions:

1) in zpool I saw some disk added with the *s2 at the end, I have in mind that should not be ? is this right and if so can I get the *s2 disk out of the zpool ?

2) Zpool has still 2 spare disk but when I try to create a new ZFS FS and like to reserve 450GB to it it tells me:

bash# zfs set reservation=450gb poolA/volume06
cannot set property for 'poolA/volume06': size is greater than available space

bash# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
poolA 6.71T 5.77T 962G 86% ONLINE -

what can this be ?

Thanks,
# 2  
Old 03-09-2011
Show us:
Code:
zfs list

# 3  
Old 03-09-2011
Code:
zfs list 
NAME                     USED  AVAIL  REFER  MOUNTPOINT
poolA                    6.61T   382K    21K  /g1ng02-H
poolA/volume_vol01   459G  21.0G   459G  /data/volume_vol01
poolA/volume_vol02   424G  25.7G   424G  /data/volume_vol02
poolA/volume_vol03   430G  20.2G   430G  /data/volume_vol03
poolA/volume_vol04   429G  20.7G   429G  /data/volume_vol04
poolA/volume_vol05   663G   237G   663G  /data/volume_vol05
poolA/volume_vol06   434G   382K   434G  /data/volume_vol06
poolA/volume_vol19   851G  48.8G   851G  /data/volume_vol19
poolA/volume_vol49   876G  24.5G   876G  /data/volume_vol49
poolA/volume_vol50   866G  34.4G   866G  /data/volume_vol50
poolA/volume_vol51   481G   419G   481G  /data/volume_vol51

# zpool status
  pool: poolA
 state: ONLINE
 scrub: none requested
config:
        NAME                         STATE     READ WRITE CKSUM
       poolA                          ONLINE       0     0     0
          c3t5006016039A0399Bd125    ONLINE       0     0     0
          c3t5006016039A0399Bd126    ONLINE       0     0     0
          c3t5006016039A0399Bd18     ONLINE       0     0     0
          c3t5006016039A0399Bd129    ONLINE       0     0     0
          c3t5006016039A0399Bd130    ONLINE       0     0     0
          c3t5006016039A0399Bd68     ONLINE       0     0     0
          c3t5006016039A0399Bd69     ONLINE       0     0     0
          c3t5006016039A0399Bd35s2   ONLINE       0     0     0
          c3t5006016039A0399Bd66s2   ONLINE       0     0     0
          c3t5006016039A0399Bd67s2   ONLINE       0     0     0
          c3t5006016039A0399Bd124s2  ONLINE       0     0     0
          c3t5006016039A0399Bd32     ONLINE       0     0     0
          c3t5006016039A0399Bd59     ONLINE       0     0     0
          c3t5006016039A0399Bd0      ONLINE       0     0     0
          c3t5006016039A0399Bd2      ONLINE       0     0     0
          c3t5006016039A0399Bd3      ONLINE       0     0     0
          c3t5006016039A0399Bd4      ONLINE       0     0     0
          c3t5006016039A0399Bd5      ONLINE       0     0     0

 
reamrk : all disk are 451Gb , except 2 of them are 51GB

---------- Post updated at 01:41 PM ---------- Previous update was at 01:33 PM ----------

and ZFS FS are either set reservation to
poolA/volume_vol01 480G
poolA/volume_vol02 450G
poolA/volume_vol03 450G
poolA/volume_vol04 450G
poolA/volume_vol05 900G
poolA/volume_vol06 450G
poolA/volume_vol19 900G
poolA/volume_vol49 900G
poolA/volume_vol50 900G
poolA/volume_vol51 900G
Last edited by pludi; 03-09-2011 at 08:36 AM.. Reason: code tags
# 4  
Old 03-09-2011
Quote:
Originally Posted by manni2
1) in zpool I saw some disk added with the *s2 at the end, I have in mind that should not be ? is this right and if so can I get the *s2 disk out of the zpool ?
No, you cannot remove a non redundant data disk from a pool.
Quote:
2) Zpool has still 2 spare disk but when I try to create a new ZFS FS and like to reserve 450GB to it it tells me:

bash# zfs set reservation=450gb poolA/volume06
cannot set property for 'poolA/volume06': size is greater than available space
...
what can this be ?
ZFS is probably complaining you want to reserve more space than the zvol size property, which you fail to tell.
# 5  
Old 03-09-2011
Quote:
Originally Posted by jlliagre
No, you cannot remove a non redundant data disk from a pool.

What is the different to add the disk or the *s2 ?

So my tought about zfs remove disk*s2 and thena zfs add disk (without s2) would not work ?
# 6  
Old 03-09-2011
It is better to give whole disks to ZFS instead of partitions/slices as it can better tune their cache but this might not be an issue in your case. Where do these disks come from ?

You obviously cannot remove from a pool a disk that contains unique data without breaking (i.e. destroying) the whole pool. You should have create either a mirrored or raidz pool to get this flexibility.
# 7  
Old 03-14-2011
Thanks, ok then I think I will leave the *s2 inside and take care to add the real disk in future. thanks
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