Installation and User's Guide - Services and Support

IBM Confidential– Specify backupdestination set to BOTH at 12am. Note that this will create a12am backup to local. Therefore, no separate 12am backup to local isrequired.– Full offloaded-backup at 1am. Note that no VSS local backup will be availableto restore from between 1am and 4am when next VSS backup to local willtake place.v Perform weekly VSS-copy backups to Tivoli Storage Manager (offloaded backup)5amv Perform weekly legacy full backups (or as needed).Recommended Tivoli Storage Manager policy settingsMake sure the following policy items are defined with the recommended settings.Consult your Tivoli Storage Manager administrator or see the IBM Tivoli StorageManager for Windows Administrator’s Guide and the IBM Tivoli Storage Manager forWindows Administrator’s Reference for complete information on defining or updatingthese Tivoli Storage Manager policy items.DomainCreate a policy domain on the Tivoli Storage Manager server to be usedexclusively for Data Protection for Exchange backups.Policy SetPolicy sets contain management classes (which contain copy groups) thatdetermine the rules by which Data Protection for Exchange backups are performedand managed. Define the policy set to the policy domain to which Data Protectionfor Exchange backups belong. Note that the policy set must be activated and onlyone policy set can be active in the policy domain.Management ClassDefine a management class for backups residing on local shadow volumes and amanagement class for backups residing on Tivoli Storage Manager server storage.Different management classes provide the opportunity for specialized policies foreach storage destination. For example, you can maintain six versions of local VSSBackups of a given storage group (VERExists=6) while maintaining only twoversions of the same storage group on Tivoli Storage Manager server storage(VERExists=2). In addition, you can create a separate management class for copybackup types for use in long term storage. Such policies can maximize storageresources and provide more control over your storage strategy.Be aware that since Legacy backups on Tivoli Storage Manager server storage, VSSBackups on Tivoli Storage Manager server storage (COPY and FULL), and VSSBackups on local shadow volumes (COPY and FULL) all have different TivoliStorage Manager server naming and therefore, can each have their ownmanagement class, it is possible to have five active backups of the same storagegroup. Make sure your backup strategy is planned and well-defined beforedefining management classes.Copy GroupDefine the copy group as a backup copy group and not an archive copy group.Since Data Protection for Exchange stores all objects as backup objects on TivoliStorage Manager in backup storage pools, an archive copy group is not required,although an archive copy group can exist. The following backup copy groupparameters significantly influence your backup policy:Chapter 3. Configuring Data Protection for Exchange 35