LUN has no state after SnapLock
Applies to
- ONTAP 9
- SnapLock Compliance
- LUN
Issue
- LUN has no metadata after SnapLock:
::> lun show -instance -vserver iscsi_svm_snaplock -path /vol/snaplock_mir_SQL_data_vol/lun.dat
Vserver Name: iscsi_svm_snaplock
LUN Path: /vol/snaplock_mir_SQL_data_vol/lun.dat
Volume Name: snaplock_mir_SQL_data_vol
Qtree Name: ""
LUN Name: lun.dat
LUN Size: -
OS Type: -
Space Reservation: -
Serial Number: -
Serial Number (Hex): -
Comment: -
Space Reservations Honored: -
Space Allocation: -
State: -
LUN UUID: -
Mapped: unmapped
- Volume is fine, and has type
DP:
::> volume show -instance -vserver iscsi_svm_snaplock -volume snaplock_mir_SQL_data_vol
Vserver Name: iscsi_svm_snaplock
Volume Name: snaplock_mir_SQL_data_vol
Aggregate Name: cluster1_04_aggr2_sata_snaplock
List of Aggregates for FlexGroup Constituents: cluster1_04_sata_snaplock
Encryption Type: none
List of Nodes Hosting the Volume: cluster1_04
Volume Size: 811.8GB
Volume Data Set ID: 5944
Volume Master Data Set ID: 2154731386
Volume State: online
Volume Style: flex
Extended Volume Style: flexvol
FlexCache Endpoint Type: none
Is Cluster-Mode Volume: true
Is Constituent Volume: false
Number of Constituent Volumes: -
Export Policy: default
User ID: 0
Group ID: 0
Security Style: unix
UNIX Permissions: ---rwxr-xr-x
Junction Path: -
Junction Path Source: -
Junction Active: -
Junction Parent Volume: -
Comment:
Available Size: 150.0GB
Filesystem Size: 811.8GB
Total User-Visible Size: 811.8GB
Used Size: 661.8GB
Used Percentage: 81%
Volume Nearly Full Threshold Percent: 95%
Volume Full Threshold Percent: 98%
Maximum Autosize: 100TB
Minimum Autosize: 322.5GB
Autosize Grow Threshold Percentage: 85%
Autosize Shrink Threshold Percentage: 70%
Autosize Mode: grow_shrink
Total Files (for user-visible data): 21251126
Files Used (for user-visible data): 101
Space Guarantee in Effect: true
Space SLO in Effect: true
Space SLO: none
Space Guarantee Style: none
Fractional Reserve: 0%
Volume Type: DP
- LUN file is contained in volume snapshots:
::> set advanced
Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel.
Do you want to continue? {y|n}: y
::*> system node run -node cluster1-04 -command "ls /vol/snaplock_mir_SQL_data_vol/.snapshot/SP_2_399842_1711652461"
.
..
lun.dat
- When trying to restore a snapshot with
snapmirror restore, the resulting LUN also has no state and cannot be onlined to recover data:
::> lun online -vserver iscsi_svm -path /vol/temp_SQL_data_vol/lun.dat
Error: command failed: Error while looking up LUN "/vol/temp_SQL_data_vol/lun.dat". Reason: Invalid argument.
- SnapMirror relationship:
::> snapmirror show -instance -source-path iscsi_svm:mir_SQL_data_vol -destination-path iscsi_svm_snaplock:snaplock_mir_SQL_data_vol
Source Path: iscsi_svm:mir_SQL_data_vol
Source Cluster: -
Source Vserver: iscsi_svm
Source Volume: mir_SQL_data_vol
Destination Path: iscsi_svm_snaplock:snaplock_mir_SQL_data_vol
Destination Cluster: -
Destination Vserver: iscsi_svm_snaplock
Destination Volume: snaplock_mir_SQL_data_vol
Relationship Type: XDP
- The source LUN before SnapLock has expected metadata:
::> lun show -instance -vserver iscsi_svm -path /vol/mir_SQL_data_vol/lun.dat
Vserver Name: iscsi_svm
LUN Path: /vol/mir_SQL_data_vol/lun.dat
Volume Name: mir_SQL_data_vol
Qtree Name: ""
LUN Name: lun.dat
LUN Size: 500GB
OS Type: windows
Space Reservation: disabled
Serial Number: 802Ks$Fn0v3f
Serial Number (Hex): 3830324b7324466e30763366
Comment:
Space Reservations Honored: false
Space Allocation: disabled
State: online
LUN UUID: 07498d86-41c1-4d05-b87b-ac666774de10
Mapped: unmapped
- Only the source LUN, not the SnapLock LUN, is listed with
lun show:
::> lun show
Vserver Path State Mapped Type Size
--------- ------------------------------- ------- -------- -------- --------
iscsi_svm /vol/mir_SQL_data_vol/lun.dat online unmapped windows 500GB