Installation and User's Guide - Services and Support

IBM ConfidentialAppendix B. Frequently asked questionsThis section contains information on frequently asked questions regarding DataProtection for Exchange.Can I use IBM Tivoli Storage Manager for Copy Services Version 5.4 to performa VSS Instant Restore of backups created with IBM Tivoli Storage Manager forCopy Services Version 5.3.3?On DS storage: Backups created with IBM Tivoli Storage Manager forCopy Services Version 5.3.3 on local shadow volumes that reside on DSstorage cannot be restored via VSS Instant Restore using IBM Tivoli StorageManager for Copy Services Version 5.4. You must create backups on localshadow volumes (residing on DS storage) using IBM Tivoli StorageManager for Copy Services Version 5.4 in order to restore them via VSSInstant Restore. Backups created with IBM Tivoli Storage Manager forCopy Services Version 5.3.3 on local shadow volumes (residing on DSstorage) can be restored via VSS Fast Restore using IBM Tivoli StorageManager for Copy Services Version 5.4.On SAN Volume Controller storage: Backups created with IBM TivoliStorage Manager for Copy Services Version 5.3.3 on local shadow volumesthat reside on SAN Volume Controller storage can be restored via VSSInstant Restore (and VSS Fast Restore) using IBM Tivoli Storage Managerfor Copy Services Version 5.4.See “VSS Instant Restore” on page 12 formore information.Can I perform VSS operations in a clustered Exchange Server environment?Yes, Data Protection for Exchange supports VSS operations in a clusteredExchange Server environment. See “Using VSS operations in a cluster” onpage 16 for detailed information.Why can I not perform VSS operations?The IBM Tivoli Storage Manager for Copy Services Microsoft ExchangeVSS Integration Module must be installed. See “Software and operatingsystem requirements” on page 25 detailed information.Why can I not perform VSS Instant Restore even though I have SAN VolumeController or a DS storage subsystem installed?The IBM Tivoli Storage Manager for Copy Services Hardware DevicesSnapshot Integration Module must be installed. See “Software andoperating system requirements” on page 25 for detailed information.Why is myVSS Instant Restore failing over to a VSS Fast Restore?A failover can occur if the Exchange data resides on storage subsystemsthat are not supported for VSS Instant Restore. See “VSS Instant Restore”on page 12 for information about failovers.Can I use VSS Instant Restore to restore a single database (partial restore)?You cannot perform a partial restore (/partial) while using VSS InstantRestore. You must restore ALL databases within the specified storagegroup when performing a VSS Instant Restore. Although Data Protectionfor Exchange allows this operation to begin, it will either fail or completewith undesirable consequences. If you need to restore just one databasefrom a VSS Backup that resides on local VSS shadow volumes on DS orSAN Volume Controller disks, make sure to select the Disable VSS InstantRestore option in the Data Protection for Exchange GUI Restore Window125