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Windows environments. The HP StoreOnce Backup systems have been specifically designed for backup
and uniquely offer:
Easier setup, maintenance and administration of backup
Data deduplication functionality, allowing more backup data to be retained on disk for longer
Low-bandwidth data replication for cost-effective off-site storage
The StoreOnce backup systems should not be used for general purpose NAS operations such as file
sharing. The HP StoreOnce Backup system is designed for one particular usage model - as target storage
device for backup applications. StoreOnce Backup systems include in-line data deduplication and support
for low bandwidth replication (via a license) and is optimized for these features.
Migrating data to Tape
The StoreOnce Backup systems are an excellent solution for regular and daily backup with data
deduplication allowing more data to be retained on disk for longer, and enabling network-efficient data
replication to deliver a cost-effective off-site disaster recovery solution.
Using the StoreOnce device should should enable a significant reduction in the amount of data stored on
physical tape, so that for example, there is no longer any need to store daily incremental backups on tape.
However, HP still recommends periodic off-load to tape as the most cost-effective, energy efficient and
robust solution for:
Long-term archival of data to meet regulatory requirements
Or off-site storage for disaster recovery where data replication is not an option
The frequency of copying data to tape will vary according to specific data protection requirements. Using a
combination of both disk and tape can deliver all the benefits of disk for fast data backup and restore, and
tape for additional levels of data protection, particularly over a period of multiple years.
When using the StoreOnce Backup system as a target for backup, there are two ways to periodically off-
load data to tape using stand-alone tape drives, autoloaders or libraries
For highest performance, use a separate physical tape backup. This uses the backup application to
create a completely separate tape backup from the server to a physical tape drive or library in
parallel to the StoreOnce backup. However, this will require the user to periodically manage two
separate backup processes ( StoreOnce on a daily basis, and both StoreOnce and Tape where
archival is being prepared).
For a straight-forward and easier to manage solution, and where performance is less of an issue, use
backup application copy. This uses the backup application to copy cartridges or NAS file shares that have
been backed up to the target StoreOnce backup system to a physical tape drive or library that is connected
elsewhere in the storage network either directly connected to a media server or on a Fibre Channel SAN.
This method may have a performance impact, as the data has to be re-assembled on the StoreOnce
backup system for copy and performance depends on the number of streams read/copied in parallel.
QuickSpecs
HP StoreOnce Backup systems
Features and Benefits
DA - 13218 Worldwide — Version 18 — September 28, 2012
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