Hp D2D100 Backup System Manuel d'utilisateur télécharger pdf (Page 16)

To ﬁnd out which Ultrium Tape Drive models and HBAs and are supported, refer to

ww.hp.com/go/connect .

Software and hardware requirements

Refer to www.hp.com/go/connect for the latest connectivity and compatibility information.

• The HP D2D Backup System sho uld be connected to a Gigabit Ethernet network. 100 Base-T

Ethernet will limit performance; 10 Base-T Ethernet will severely l im it performance. For example

network topol

ogies, see “Supported network conﬁgurations” on page 24.

• For backup and restore you need software that supports tape autoloaders. This software resides

on the host, not the HP D2D Backup System. A CD-ROM containing HP D ata Protector Express

software is supplied with the HP D2D Backup System. The device may also be used with the major

backup appl

ications from HP, Symantec, EMC, Computer A ssociates and others.

• Windows Backup is only supported with standalone tape drives created on the HP D2D Backup

System. It is not supported for use with autoloader backup devices created on the HP D2D

Backup Syst

em.

Terminology

Autoloaders

An autoloader is a backup device that has multiple storage slots. Each storage slot contains a cartridge.

This has tw

o advantages over standalone tape drives:

• The overall storage capacity is much g reater.

• More importantly, each cartridge can be allocated to a speciﬁc backup task; for example,

one cartr

idge can hold Monday’s data, another can hold Tuesday’s data, and so on. In this

way, backup applications are able to implement tape rotation strategies that accommodate

differing backup requirements for daily, weekly, monthly, yearly backups. Please see

“Backup scenarios using the HP D2D Backup System” on page 55 for worked examples.

Backup devices and slots

Backup devices appear to the host as locally-attached tape devices, but physically, they use d isk space on

the H P D2D Backup System which, as in tape terminology, is referred to a s slots or cartridges.

Depending on your data protection strategy, you may conﬁgure each backup device as a standalone HP

StorageWorks Ultrium Tape D rive or, more typically, as an HP StorageWorks 1x8 G2 Tape Autoloader

with attached Ultrium Tape Drive.

• When you con ﬁgure your HP D2D Backup System with a standalone tape drive, 200 GB of

physical disk space is made available for that tape drive. This is the equivalent of a permanently-

mounted 200 GB tape car tridge, which cannot be unloaded. Tape spanning is impossible, so the

data to be backed up must not exceed 200 GB.

• When you con ﬁgure your HP D2D Backup System with a tape autoloader, up to 200 GB of

physical disk space can b e made available for each conﬁgured slot. This is the equivalent of an

autoloader with multiple slots, each containing a 200 GB car tridge. Both tape spanning and,

more importantly, ﬂexible tape rotation strategies are possible.

Hos

Each emulated tape device is uniquely mapped to an ind ividual host; this is the network server or

PC that you wish to b ack up.

• The

tape device appears to the host as a locally-attached tape autoloader or tape drive.

• The tape device is accessed and managed from the backup software running on the host.

• Thetapedeviceisnotvisibletootherdevicesonthenetwork.

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Hp D2D100 Backup System Manuel d'utilisateur Page 16

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