HP D2D .HP D2D Backup System user guide (EH985-90907, March 2011) - Page 191

To export to attached tape storage device, currently attached to the HP D2D Backup System.

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To export to attached tape storage device Data can only be exported from the mail slot. Once data has been exported it is removed from the HP D2D Backup System. However, if an error occurs during the process, the data is not deleted. It remains on the cartridge located in the mail slot. Export is not recommended with deduplicating libraries as it does very little to free up disk space, which is the prime reason for export. (Space is only freed up, if a chunk of data is no longer referenced by any cartridges.) The preferred option is to use the backup application on the host to move the cartridge into the mail slot. This action removes the cartridge from the numbered slot and leaves the slot empty and also ensures that the backup application is in sync with the status of cartridges on the HP D2D. Backup applications have a number of terms to describe this action, such as remove or eject. Refer to the documentation supplied with your backup application for further details. You can also move cartridges manually from the Web Management Interface, see "Cartridges (Virtual Tape Devices)" on page 24. CAUTION: Do not export cartridges that the backup application uses on a frequent basis as part of a rotation strategy. 1. Click on the mail slot in the Cartridge list and press the Next button. NOTE: The Export function is only active if the mail slot contains a cartridge with data on it (there is an Export label in the right column of the mail slot). 2. This displays the second page of the wizard. (Or reports an error if no tape storage devices are currently attached to the HP D2D Backup System.) 3. Select the attached tape drive from the pull-down list, the required physical slot if it is a tape library, the required verify/compare option and whether the physical cartridge should be unloaded after the operation completes. NOTE: A Full Verify reads the data back after copy and compares it byte-by-byte with the original. A Quick Verify also reads back the data, but only ensures that it can be read. It may save some time if another tape device on the HP D2D Backup System is being accessed at the same time as the copy operation. No Verify is the fastest option. NOTE: On physical tape libraries the unload after completion option moves the cartridge to the mail slot, if the mail slot is enabled and empty. Backup System user guide 191

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To export to attached tape storage device
Data can only be exported from the mail slot. Once data has been exported it is removed from the
HP D2D Backup System. However, if an error occurs during the process, the data is not deleted. It
remains on the cartridge located in the mail slot.
Export
is not recommended with deduplicating
libraries as it does very little to free up disk space, which is the prime reason for export. (Space is
only freed up, if a chunk of data is no longer referenced by any cartridges.)
The preferred option is to use the backup application on the host to move the cartridge into the mail
slot. This action removes the cartridge from the numbered slot and leaves the slot empty and also
ensures that the backup application is in sync with the status of cartridges on the HP D2D. Backup
applications have a number of terms to describe this action, such as remove or eject. Refer to the
documentation supplied with your backup application for further details. You can also move cartridges
manually from the Web Management Interface, see
“
Cartridges (Virtual Tape Devices)
”
on page 24.
CAUTION:
Do not export cartridges that the backup application uses on a frequent basis as part of a rotation
strategy.
1.
Click on the mail slot in the Cartridge list and press the
Next
button.
NOTE:
The Export function is only active if the mail slot contains a cartridge with data on it (there
is an Export label in the right column of the mail slot).
2.
This displays the second page of the wizard. (Or reports an error if no tape storage devices are
currently attached to the HP D2D Backup System.)
3.
Select the
attached tape drive
from the pull-down list, the required
physical slot
if it is a tape
library, the required
verify/compare option
and whether the physical cartridge should be
unloaded
after the operation completes.
NOTE:
A
Full Verify
reads the data back after copy and compares it byte-by-byte with the original.
A
Quick Verify
also reads back the data, but only ensures that it can be read. It may save
some time if another tape device on the HP D2D Backup System is being accessed at the
same time as the copy operation.
No Verify
is the fastest option.
NOTE:
On physical tape libraries the
unload after completion
option moves the cartridge to the
mail slot, if the mail slot is enabled and empty.
Backup System user guide
191