NetWorker vProxy backup fails with "Unable to create non-quiesced snapshot after a retry attempt: Detected an invalid snapshot configuration"

摘要: The NetWorker VMware Protection (NVP) integration is configured with the vProxy Appliance. The virtual machine (VM) backup for some VM's fails with a invalid snapshot configuration error message. The vSphere Web client snapshot view for the VM, does not show any available snapshots for the VM. ...

本文章適用於 本文章不適用於 本文無關於任何特定產品。 本文未識別所有產品版本。
查看其他資源

症狀

The Backup session log shows: 
...
YYYY-MM-DD HH:MM:SS INFO:   [167] Creating snapshot of virtual machine ...
YYYY-MM-DD HH:MM:SS ERROR:  [167] Unable to create non-quiesced snapshot after a retry attempt: Detected an invalid snapshot configuration.
YYYY-MM-DD HH:MM:SS ERROR:  [167] Unable to create snapshot.
YYYY-MM-DD HH:MM:SS INFO:   [167] Enabling storage migration of virtual machine ...
YYYY-MM-DD HH:MM:SS INFO:   [167] Storage migration successfully enabled: "vm-4030" @ "my_vm_name.my_domain.com" 
YYYY-MM-DD HH:MM:SS WARN:   [167] Virtual machine left locked by backup session because cleanup is required.  Snapshot was not removed.
...

The VMNAME_vmware-###.log shows: 
...
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: SNAPSHOT: SnapshotBranchDisk: Failed to branch disk: '/vmfs/volumes/DATASTORE_UUID/VM_NAME/VM_NAME.vmdk' -> '/vmfs/volumes/DATASTORE_UUID/VM_NAME/VM_NAME-000004.vmdk' : The file already exists (39)
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: DiskLib_IsVMFSSparseSupported: vmfssparse is not supported on /vmfs/volumes/DATASTORE_UUID/VM_NAME: f532.
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: DISKLIB-LIB_CREATE   : DiskLibCreateCreateParam: Selecting the default child type as SeSparse for /vmfs/volumes/DATASTORE_UUID/VM_NAME/VM_NAME-000005.vmdk.
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: DISKLIB-LIB_CREATE   : DiskLibCreateCreateParam: seSparse grain size is set to 8 for '/vmfs/volumes/DATASTORE_UUID/VM_NAME/VM_NAME-000005.vmdk'
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: SNAPSHOT: SnapshotBranchDisk failed for '/vmfs/volumes/DATASTORE_UUID/VM_NAME/VM_NAME.vmdk' : A required file was not found (7).
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: DISKLIB-VMFS  : "/vmfs/volumes/DATASTORE_UUID/VM_NAME/VM_NAME-flat.vmdk" : closed.
YYYY-MM-DD HH:MM:SS| vcpu-0| I125: SNAPSHOT: SnapshotBranch failed: A required file was not found (7).
...

原因

The issue can occur when there are are orphaned temporary snapshot descriptor files in the virtual machine data store directory. These snapshot descriptor files appear as ####.-000001.vmdk, ####.-000001-sesparse.vmdk and ####.-000001-ctk.vmdk.

解析度

The steps to remove the orphaned temporary snapshot descriptor files are documented in VMware Knowledge base 80246.

https://kb.vmware.com/s/article/80246 This hyperlink is taking you to a website outside of Dell Technologies.  
  1. Browse affected VM's Datastore to identify the temporary descriptor files. Name may appear as: 
    • ####-000001.vmdk
    • ####-000001-sesparse.vmdk
    • ####-000001-ctk.vmdk 
  2. Identify a folder with enough space to move the temporary descriptor files and create a new folder
    • vmfs/volumes/VM_####_DATASTORE5/FOLDERNAME/
  3. Move the temporary descriptor files to newly created folder
  4. Take snapshot of the VM and validate snapshot created successfully.
  5. Delete all the snapshots with the "Delete All Snapshots" option.
  6. Validate snapshot deleted.
  7. Validate there are no descriptor files in the VM datastore folder.
  8. Let the scheduled vProxy Backups Run.

其他資訊

NVP vProxy: Troubleshooting VMware Snapshot Issues during NetWorker backups.

受影響的產品

NetWorker
文章屬性
文章編號: 000196313
文章類型: Solution
上次修改時間: 23 10月 2024
版本:  3
向其他 Dell 使用者尋求您問題的答案
支援服務
檢查您的裝置是否在支援服務的涵蓋範圍內。