Owner's manual

that you a ctually require. If you configure six 24-slot autoloaders, you should be aware that you have
committed 192 GB of disk space. Only do this, if you are sure all slots will be used. Once added,
slotscannotberemoved.
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1. 8x2GBofphysicaldiskspacehasbeencommitted.
2. The remainder of the configured maximum capacity is used only as needed, but the initial 2 GB is
permanently committed.
Figure
4 Storage capac it y
The exa
mple configurations in “Backup scenarios using the H P D2D Backup System” on page 55 illustrate
how you
can make full use of the available slots in designing your backup rotation strategy and ensure
that y
oudonotcreateabackupschemethatwouldresultinrunningoutofphysicaldiskspace.
NOTE:
The LED indicators and the Status pages on the Web Management Interface will warn you when disks
in the HP D2D Backup System exceed 90% full.
Tape rotation strategies
Tap e rotation strategies determine when backups are run, the number of cartridges that are required and
how they are reused. The HP D2D Backup System is a very flexible device that can easily be incorporated
into most tape rotation strategies. If your organiza tion does not yet have a tape rotation strategy i n place,
see “Backup scenarios using the HP D2D Backup System” on page 55 for example configurations.
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Before you start