HP D2D HP D2D Backup System Concepts guide (EH985-90915, March 2011) - Page 6

Comparing NAS and Virtual Tape Library targets, Connecting to the HP StoreOnce Backup System - user guide

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NOTE: The HP D2DBS Generic Library emulation type provides the most flexibility in numbers of cartridges and drives. It is also clearly identified in most backup applications as a virtual tape library and so is easier for supportability. If your backup application supports this emulation type, it is the recommended option. Comparing NAS and Virtual Tape Library targets The following table summarizes some of the differences between NAS targets and Virtual Tape devices. Table 1 Comparing NAS targets and Virtual Tape devices Virtual tape devices NAS targets Acts as a staging post to tape because backups are in tape Enables use of backup application functionality that is only format; supports direct tape offload available with file shares, such as Disk-to-Disk-to-Tape implementations. Requires a backup application that supports backup to tape May be used with backup applications that do not support backup to tape Integrates into the current backup routine and requires no Requires a new backup job, but is simple to set up special backup jobs May require purchase of a 'tape backup' licence for the No special licences are required in most cases, potentially backup application saving money Connecting to the HP StoreOnce Backup System The Web Management Interface is the main tool for accessing and configuring the HP StoreOnce Backup System and its devices. However, you can also connect to the appliance using a system console and keyboard or the iLO2 management port. For more information Separate chapters in this guide provide more background information about VTL and NAS devices and the specifications that are supported. For information about using the Web Management Interface to configure and monitor devices, refer to the HP StoreOnce D2D Backup System user guide. 6 Before you start

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NOTE:
The HP D2DBS Generic Library emulation type provides the most flexibility in numbers
of cartridges and drives. It is also clearly identified in most backup applications as a virtual tape
library and so is easier for supportability. If your backup application supports this emulation type,
it is the recommended option.
Comparing NAS and Virtual Tape Library targets
The following table summarizes some of the differences between NAS targets and Virtual Tape
devices.
Table 1 Comparing NAS targets and Virtual Tape devices
NAS targets
Virtual tape devices
Enables use of backup application functionality that is only
available with file shares, such as Disk-to-Disk-to-Tape
implementations.
Acts as a staging post to tape because backups are in tape
format; supports direct tape offload
May be used with backup applications that do not support
backup to tape
Requires a backup application that supports backup to
tape
Requires a new backup job, but is simple to set up
Integrates into the current backup routine and requires no
special backup jobs
No special licences are required in most cases, potentially
saving money
May require purchase of a 'tape backup' licence for the
backup application
Connecting to the HP StoreOnce Backup System
The Web Management Interface is the main tool for accessing and configuring the HP StoreOnce
Backup System and its devices. However, you can also connect to the appliance using a system
console and keyboard or the iLO2 management port.
For more information
Separate chapters in this guide provide more background information about VTL and NAS devices
and the specifications that are supported. For information about using the Web Management
Interface to configure and monitor devices, refer to the
HP StoreOnce D2D Backup System user
guide
.
6
Before you start