Products: CA ARCserve D2D r16.0,r 16.5
Restoring a Microsoft Exchange database on to a compressed volume or directory is not recommended or supported by Microsoft. This can lead to a dismounted state of the database after restore.
As a workaround, move the database path to an uncompressed volume or directory before restore and perform the restore again.
Microsoft KB Article,
For best practices on NTFS compression in Windows,