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What kind of conditions can cause snapmirror show command to display "Last Transfer Size: -"?

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Category:
ontap-9
Specialty:
dp
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Applies to

 ONTAP

Answer

  • Condition 1) Last Transfer Type cannot be identified successfully.

Example:

::> snapmirror show voldest

                            Source Path: SVM1:volsrc
                       Destination Path: SVM1:voldest
                      Relationship Type: DP
                Relationship Group Type: none
                    SnapMirror Schedule: -
                 SnapMirror Policy Type: async-mirror
                      SnapMirror Policy: DPDefault
                            Tries Limit: -
                      Throttle (KB/sec): unlimited
                           Mirror State: Snapmirrored
                    Relationship Status: Quiesced
                File Restore File Count: -
                 File Restore File List: -
                      Transfer Snapshot: -
                      Snapshot Progress: -
                         Total Progress: -
              Network Compression Ratio: -
                    Snapshot Checkpoint: -
                        Newest Snapshot: snapmirror.ca05c9c9-9530-11e8-8ac2-005056a07220_2153244767.2020-03-08_040544
              Newest Snapshot Timestamp: 03/08 04:05:51
                      Exported Snapshot: snapmirror.ca05c9c9-9530-11e8-8ac2-005056a07220_2153244767.2020-03-08_040544
            Exported Snapshot Timestamp: 03/08 04:05:51
                                Healthy: true
                       Unhealthy Reason: -
               Constituent Relationship: false
                Destination Volume Node: node1
                        Relationship ID: 8c3c6e0e-562e-11ea-9cbd-005056a07220
                   Current Operation ID: -
                          Transfer Type: -
                         Transfer Error: -
                       Current Throttle: -
              Current Transfer Priority: -
                     Last Transfer Type: -
                    Last Transfer Error: -
                     Last Transfer Size: -
Last Transfer Network Compression Ratio: -
                 Last Transfer Duration: -
                     Last Transfer From: -
            Last Transfer End Timestamp: -
                  Progress Last Updated: -
                Relationship Capability: 8.2 and above
                               Lag Time: 1051:52:13
           Identity Preserve Vserver DR: -
                 Volume MSIDs Preserved: -
                 Is Auto Expand Enabled: -
           Number of Successful Updates: 0
               Number of Failed Updates: 0
           Number of Successful Resyncs: 0
               Number of Failed Resyncs: 0
            Number of Successful Breaks: 0
                Number of Failed Breaks: 0
                   Total Transfer Bytes: 0
         Total Transfer Time in Seconds: 0

 

  • Condition 2) Last Transfer Error indicates that the SnapMirror transfer failed to start.

Example:

::> snapmirror show voldest2

                            Source Path: SVM2:volsrc2
                       Destination Path: SVM2:voldest2
                      Relationship Type: DP
                Relationship Group Type: none
                    SnapMirror Schedule: mirror2
                 SnapMirror Policy Type: async-mirror
                      SnapMirror Policy: DPDefault
                            Tries Limit: -
                      Throttle (KB/sec): unlimited
                           Mirror State: Snapmirrored
                    Relationship Status: Transferring
                File Restore File Count: -
                 File Restore File List: -
                      Transfer Snapshot: snapmirror.ca05c9c9-9530-11e8-8ac2-005056a07220_2153244784.2020-04-08_084807
                      Snapshot Progress: 1.97TB
                         Total Progress: 1.97TB
              Network Compression Ratio: 1:1
                    Snapshot Checkpoint: 1.97TB
                        Newest Snapshot: snapmirror.ca05c9c9-9530-11e8-8ac2-005056a07220_2153244784.2020-03-07_090000
              Newest Snapshot Timestamp: 03/07 20:01:29
                      Exported Snapshot: snapmirror.ca05c9c9-9530-11e8-8ac2-005056a07220_2153244784.2020-03-07_090000
            Exported Snapshot Timestamp: 03/07 20:01:29
                                Healthy: false
                       Unhealthy Reason: Scheduled update failed to start. (Scheduled update was delayed because another SnapMirror operation for the relationship is in progress.)
               Constituent Relationship: false
                Destination Volume Node: BEATOMNODE06
                        Relationship ID: abf2ff7c-64a1-11e9-b4af-005056a07220                   
                   Current Operation ID: 3b00000a-792a-11ea-b342-00a01234567f
                          Transfer Type: update
                         Transfer Error: -
                       Current Throttle: unlimited
              Current Transfer Priority: normal
                     Last Transfer Type: update
                    Last Transfer Error: Transfer did not start. The relationship is quiesced, or Vserver peering between source and destination Vservers has been suspended or removed.
                     Last Transfer Size: -
Last Transfer Network Compression Ratio: -
                 Last Transfer Duration: -
                     Last Transfer From: SVM2:volsrc2
            Last Transfer End Timestamp: 03/14 17:05:08
                  Progress Last Updated: 04/20 23:58:04
                Relationship Capability: 8.2 and above
                               Lag Time: 1059:56:46
           Identity Preserve Vserver DR: -
                 Volume MSIDs Preserved: -
                 Is Auto Expand Enabled: -
           Number of Successful Updates: 55
               Number of Failed Updates: 0
           Number of Successful Resyncs: 0
               Number of Failed Resyncs: 0
            Number of Successful Breaks: 0
                Number of Failed Breaks: 0
                   Total Transfer Bytes: 20172269412352
         Total Transfer Time in Seconds: 6214749

Additional Information