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Thick LUN states space-error but is not full

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Category:
ontap-9
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san
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Applies to

ONTAP 9

Issue

  • Event log show / EMS:
VdomFSMThr_12: LUN.out.of.space:EMERGENCY]: LUN /vol/vol1/lun1, vol vol1 (DSID xxxx) is out of space (UUID: 73f5f0c7-xxxx-xxxx-xxxx-f1e79159ef8a).
 
scsit_lu_0: scsiblade.lun.offline.system:error]: LUN 11D1s+BBBl/1 in volume with MSID xxxx on Vserver SVM has been brought offline due to lack of space in the volume.
  • LUN is thick provisioned, and its state is space-error (implying being offline)

::> lun show -vserver vs1 -path /vol/vol1/lun1 -instance
[...]
Space Reservation: enabled
[...]
State: space-error

  • Volume config is thin, no resize, no fractional reserve:

::> vol show /vol/vol1 -instance
                                     Vserver Name: svm
                                      Volume Name: vol1
                                                  [...]  
                                    Autosize Mode: off
                                                  [...]
                            Space Guarantee Style: none
                               Fractional Reserve: 0%
                                                  [...]

  • Volume is not full

::> df -h /vol/vol1/
Filesystem               total       used      avail capacity  Mounted on   Vserver
/vol/vol1/               10GB     3084MB     7155MB      30%   ---          svm
/vol/vol1/.snapshot       0B         0B         0B        0%   ---          svm
2 entries were displayed.

  • LUN is larger than volume
::> lun show /vol/vol1/lun1
Vserver   Path                            State   Mapped   Type        Size
--------- ------------------------------- ------- -------- -------- --------
svm       /vol/vol1/lun1                  space-error mapped   linux    10.1GB

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