Single file restore from a FlashBackup Instant Recovery snapshot of a file protected by Windows VSS writer fails

When performing a single file recovery from a FlashBackup Instant Recovery snapshot of a file that is protected by Windows VSS writer, the restore completes successfully however the file is not restored.

When a file is protected by a VSS writer, it should be backed up and restored with VSS writer involvement. If the VSS snapshot that is taken for FlashBackup does not have VSS writer involvement, the data in the file may not be consistent. This file should not be used for restore from either tape or snapshot.

A proper way to protect this file is to have a file backup with Shadow Copy Component file list directive specified. In this case, a VSS snapshot with VSS writer is taken.