HP D2D100 Backup System - Manual (Page 111)

My tape drive device has run out of space
It is not possible to create extra space for a tape drive device. You may be able to create an additional
device for this host. Autoloaders are much more flexible because you can add slots.
The cartridges for my attached tape drive are smaller than 200 GB
The HP StorageWorks Ultrium 448 or 460 tape drive is the ideal device for moving data from the HP D2D
to physical tape because the physical cartridge size matches the maximum configured cartridge size on
the HP D2D Backup System. However, if your backup application supports spanning across several tapes,
you can also use a tape drive with a lower capacity, such as an HP StorageWorks DAT 72 tape drive.
NOTE:
The HP D2D Backup System does not apply hardware compression to backed-up data; the HP
StorageWorks tape drive does. Therefore, 200 GB of data on the HP D2D Backup System will require
less space on a physical 200 GB tape cartridge. However, if the backup application applies software
compression, the data is not further compressed when it is exported to a physical tape directly attached
to the HP D2D Backup System. This ensures that you know exactly how much physical cartridge space is
required for export or copy.
Attached tape drive troubleshooting
An attached tape drive does not appear on the Web interface
Check that the cables and HBA are installed correctly. See “ Attaching a physical tape drive ” on page 29.
Make sure that you are using a supported HBA and tape drive. See http://www.hp.com/go/connect for
the most up-to-date information.
If you still cannot access it, try connecting the tape drive to a host server to ascertain if there is a tape
drive problem. The HP diagnostic software for tape drivers, Library & Tape Tools, is not available when
the tape drive is connected to the HP D2D, but can be used when the tape drive is attached to a server.
Call HP Support if you are unable to resolve the problem.
Cartridge copy or export fails
Check the media. Is the cartridge is large enough to accommodate the data? Is it WORM media? HP
Ultrium tape drives support WORM media, which can only be written to once (Write Once, Read Many).
Once you have written to the media, subsequent export and copy operations will fail.
Try again, using new media.
Check the tape drive LEDs, it may need cleaning. (See the documentation supplied with the tape drive
for instructions.)
Cartridge import fails
If import fails, try connecting the tape drive to the host server. You can then use Library & Tape Tools to
run diagnostic tests on the tape drive.
It is possible to import cartridges that have not been exported from the HP D2D Backup System. However,
you will only be able to read these cartridges, if they were created by the same backup application
that you are using on the host.
D2D Backup System 111