Snapshot operation fails when the Veritas VSS Provider is restarted while the Volume Shadow Copy service is running and the VSS providers are already loaded
When the Volume Shadow Copy VSS service starts, it loads the Veritas VSS provider. If the Veritas VSS provider is restarted while the Volume Shadow Copy service is running and the VSS providers are already loaded, the snapshot operation fails with a VSS error (Event ID:12293).
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