•
HP D2D4312: 12 TB (12 x 1 TB). Up to three additional shelves may be connected to the
unit, which increases the total capacity to 48 TB (48 x 1 TB)
•
HP D2D4324: 24 TB (12 x 2 TB). Up to three additional shelves may be connected to the
unit, which increases the total capacity to 96 TB (48 x 2 TB)
However, in order to ensure a high level of data integrity, the disks use RAID protection. This
reduces the available capacity by approximately 25% but ensures that, in the event of a disk
failure in the device, there will be no data loss.
T
Tape Attach
If you attach a supported, physical tape library or tape drive directly to your G1 HP Backup
System, you will be able to copy or export data to the physical tape library or tape drive so that
backups can be stored offsite. This is an important requirement for Disaster Recovery strategies.
The main difference between copy and export is that copied data remains on the G1 HP Backup
System; exported data is removed from it, but can be imported easily when required. These
functions are grouped under the Tape Attach section of the Web Interface.
B6000 and G2 HP StoreOnce Backup Systems do not support direct export to tape.
Tape rotation
strategies
Tape rotation strategies determine when backups are run, the number of cartridges that are
required and how they are reused. Virtual Tape Library targets on an HP StoreOnce Backup
System can easily be incorporated into most tape rotation strategies. If your organization does
not yet have a tape rotation strategy in place, see the HP StoreOnce Backup System Concepts
Guide for example configurations.
V
Virtual Tape
Devices
Virtual Tape Devices are backup targets on the HP StoreOnce Backup System to which the backup
application on the hosts write data. They appear to the host as network-attached or locally-attached
physical tape library or autoloader, but physically, they use disk space on the HP StoreOnce
Backup System which, as in tape terminology, is referred to as slots or cartridges.
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