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Home > Success Center > Virtualization Manager (VMAN) > VM Phantom Snapshot Files alert gives false positives

VM Phantom Snapshot Files alert gives false positives

Overview

The VM Phantom Snapshot Files alerts is getting false positives. upon checking Snapshot Manager in VSphere client, you cannot see any snapshots for VM. When browsing the related datastore, you cannot see any snapshot files.

Environment

  • VMan 6.3.0
  • VCenter 5.5

Cause 

The secondary disk created for VMs match pattern used for detecting snapshots (-\d{6}\.vmdk) is being recognized as a phantom snapshot.

Resolution

The alert triggers on vmdk files matching pattern '-\d{6}\.vmdk'. This means any files named *-000000.vmdk without the corresponding *.vmsn file is going to trigger the alert as it looks like a phantom snapshot. In your environment, additional disks are named *-000000.vmdk and this has caused alert to trigger.

Note: Snapshot information is gathered every 12 hours and the alert is evaluated after data is gathered.

 

Last modified
08:37, 10 Aug 2016

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Public