IT40565: HYPER-V INCREMENTAL BACKUP FAILED DUE TO TIMEOUT - CTGGA0076,UNPROTECTED VM -DESTINATION DISK CHAINS IS BROKEN.

APAR status

• Closed as program error.

Error description

• Hyper-V incremental backup can fail due to read timeout issue,
  
  which indicates Hyper-V host did not respond to WMI request in
  time.
  
  Joblogs shows this error:
  INFO,1648438507304,...date...UTC,2,CTGGA0544,Rescanning storage
  on host: host_name
  ERROR,1648438507748,...date...UTC,2,CTGGA0075,Total unprotected
  virtual machines by job hyperv_SLA_policy_name : 1.
  ERROR,1648438507753,...date... UTC,2,CTGGA0076,Unprotected VM:
  VM-NAME. Last error: [Destination disk chains is broken. Path:
  c:\programdata\spp\mounts\...\VM-NAME_..\Virtual Hard
  Disks\VM-NAME_....avhdx]
  DETAIL,1648438507757,...date... UTC,2,CTGGA0100,Collecting
  details of vms and volumes
  
  Virgo.log shows this:
  INFO Thread-25685
  com.catalogic.dp.xsb.cim.wmi.virtualization.MSVM_ResultHandler
  ... Job(...) monitor failed with exception.
  intel.management.wsman.WsmanException: Read timed out
  
  
  | MDVREGR 10.1.9.0  5737SPLUS |
  
  IBM Spectrum Protect Plus Versions Affected:
  IBM Spectrum Protect Plus 10.1.10 and later
  
  
  
  Additional Keywords: SPP, SPPlus, TS008834394, Hyper-V, WMI,
  timeout
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * IBM Spectrum Protect Plus level 10.1.10                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply the fixing level when available. This problem is       *
  * currently projected to be fixed in IBM Spectrum Protect Plus *
  * level 10.1.10.2 and 10.1.11. Note that this is subject to    *
  * change at the discretion of IBM.                             *
  ****************************************************************
  

Problem conclusion

• The fix for this issue is to increase timeouts and retries when
  querying Hyper-V for task status.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• Hypervis Hyper-V
  

Fix information

• Fixed component name

  SP PLUS

• Fixed component ID

  5737SPLUS

Applicable component levels