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Snapshot Volume created as part of ONLINE copy pair is not deleted when the copy pair is removed with 4K NVMe drives

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Applies to

  • SANtricity OS 11.80.1 or earlier
  • Offline Copy Volume operation　
  • Online Copy Volume operation
  • E-Series Platforms: EF300 and EF600 
    • The volume copy issue only affects volumes using BlockSizeProxy, which means these volumes are created with blockSize=512 and the volumes come from a volume group/DDP comprised of 4K NVMe drives.

volume block size.png

NOTE: Only an FC-type system can select Volume Block Size via GUI. If the host interface type is iSCSI, the default value is 512 and only creating volume via CLI can set blockSize=4K.

Issue

  • An internal snapshot volume created as part of the online volume copy pair is not deleted after deleting the online copy pair.
  • From SANtricity® System Manager GUI, Disabled Snapshot Volumes are shown in Snapshot Volumes tab, but nothing in the Snapshot images tab.
  • ASUP -> STORAGE-ARRAY-PROFILE -> SNAPSHOT VOLUMES

SNAPSHOT VOLUMES------------------------------

SUMMARY

   Total Snapshot Volumes: 1
   Most Recent Snapshot Volume: 5/16/24, 10:29:43 AM UTC
   Status: 0 Optimal, 1 Non Optimal

   Name               Type      Status     Capacity     Associated Base Volume     Snapshot Volume Timestamp     Snapshot Image Timestamp     Mode       Total Repository Capacity     Available Repository Capacity     
   vol02_SV_0000  Standard  Disabled   0.000 MB     vol02                      5/16/24, 9:43:50 AM UTC       Not applicable               Read Only  Not applicable                Not applicable                         

DETAILS


   Snapshot Volume "vol02_SV_0000"  


      Status:                      Disabled                                         
      Type:                        Standard                                         
      Capacity:                    0.000 MB                                         
      Snapshot volume timestamp:   5/16/24, 9:43:50 AM UTC                          
      Snapshot image timestamp:    Not Applicable                                   
      Associated base volume:      vol02                                            
      World-Wide Identifier:       6d:03:9e:a0:00:57:1a:f3:00:00:04:82:xx:xx:xx:xx 
      Extended unique identifier:  00:00:04:82:66:45:da:9a:d0:39:ea:00:xx:xx:xx:xx  
      Preferred owner:             Controller A                                     
      Current owner:               Controller A                                     

      Host access

         Accessible by:  None            
         LUN:            Not Applicable  
         Mode:           Read Only       
 

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