Full Enterprise Backup And Disaster Recovery Capability; Using Vls To Manage Data Retention And Reduce Backup Storage Costs - HP StorageWorks 12000 - Virtual Library System EVA Gateway Manual

Figure 52 Using VLS to Manage Data Retention and Reduce Backup Storage Costs
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Recovery options: All recovery from VLS with deduplication is fast, especially the last full backup
(typically 90% of restores are from the last backup). Copies from the VLS to physical tape is done by
expanding deduplicated data so full content is copied to physical tape. Therefore, data can be directly
recovered from physical tape.
Solution advantages:
• Deduplication is done post process so it does not slow down the backup.
• Deduplication can be enabled/disabled by data type or policy name.
• Fast restores of deduplicated data.
• Scalable up to 320 TB currently.
Solution trade-offs: Deduplication has to be certified with backup applications and data types.
Other information: HP strongly recommends using the backup application to perform the copy from
VLS to physical tape. Single management console for all activities and better utilization of physical
media through object copy technology.

Full Enterprise Backup and Disaster Recovery Capability

Company requirements: Full disaster recovery capability for an Enterprise Data center to replicate
data automatically to another site in a cost effective manner with reduced fixed costs (intersite link
costs).
Solution: VLS with active-to-passive or active-to-active configuration using low bandwidth replication.
Deduplication and target replication are licensable features at extra cost. Copy to physical tape at
disaster recovery site for archiving and further disaster recovery options.
Caveats: Allow 24 hours for replication. Scripting may be required on the target site for trickle
background import of replicated cartridges to ISV software backup catalog.
ISVs: HP Data Protector, Netbackup, and TSM only at this time. (Deduplication is the key enabler for
deduplication-enabled replication.)
130 Virtual Library Systems