HP StorageWorks 6000 HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 133
VMWare Backup Environment with ESXi.
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• A replacement VLS and servers can be installed at the primary site and data can be reverse replicated from the disaster recovery site over the low bandwidth link, although this is not recommended for high volumes of data (TBs) because of the time to replicate data wholesale over a relatively small link speed. • Data can be copied to physical tape at the disaster recovery site then transported to the primary site and imported to new servers and arrays using physical tape at the primary site. Tape could also be copied to the VLS and then recovered from there. Solution advantages: • Automated disaster recovery over cost effective low bandwidth links • Flexible recovery options • Scalable in terms of capacity and performance • Flexible replication implementations: active-to-passive, active-to-active, and many-to-one (up to four) • Very effective disaster recovery consolidation in many-to-one implementation • Only target nodes need to be licenced for replication Solution trade-offs: • Deduplication has to be certified with backup applications and data types. Data Protector, Net- backup, and TSM currently supported. • A one-time initialization process is required the first time replication runs so the source and target can synchronize. For many-to-one implementations this is typically by WAN link of by using Tape Transport. 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. For many-to-one implementations especially, sizing the links, capacity required, and replication windows required is quite complex. Please use the HP StorageWorks Backup Sizer. VMWare Backup Environment with ESXi. Company requirements: Entry-level VMWare environment. The company requires a single device for backup consolidation across all VMWare machines and other SAN hosts in this infrastructure. Wants deduplication to provide room for growth and longer retention online. Solution: VLS9000 15 TB with deduplication (licensable feature) plus object copy to physical tape for disaster recovery. Caveats: VMWare-based backup with ESXi is over a network which limits the backup performance to an absolute maximum of around 80 MB/sec. Each VMWare machine suffers loading at backup time. ISVs: HP Data Protector, Netbackup and TSM only at this time (VLS supported deduplication ISVs). Device configuration highlights: Configure VLS with dedicated library for VMWare machines, do not multiplex backups, use separate virtual drives for each VMWare machine and backup VMWare machines in parallel. Backup application configuration highlights: None - works as normal network backup, disk agents and online backup agents on VMWare machines, media agents on separate backup server. HP StorageWorks VLS and D2D Solutions Guide 133