HP Data Protector Express Basic-Software - Manual (Page 42)

the tape and then rewinds it to the beginning. This command can be useful in some circumstances. By
retensioning on the tape, you can sometimes make an otherwise unusable tape operational again.
NOTE:
If you need to retension tapes regularly to use them, consider servicing your tape drive or replacing
your tapes.
Eject You can use this command to eject media from the selected device or eject the media magazines
from the selected library. Some device magazines will not be ejectable.
Restore Catalog The Restore Catalog command provides a quick method of restoring your current
catalog, for example in case it has been corrupted. For example, you might use this command if the
Data Protector Express Backup Server has crashed. Use this command only when your current set of
media is intact. .
The Restore Catalog command differs significantly from the Import Media command in that it command
replaces the current catalog with the last known good catalog on that media. The Import Media
command, on the other hand, does not replace the current catalog; it only adds additional data to it.
The advantage of the Restore Catalog command is that it provides a quick and easy way to replace a lost
or corrupted Data Protector Express catalog. You could use the Import Media command to restore a
corrupted catalog, but this process requires importing all of your media rather than simply reading the
media containing the catalog.
TIP:
It’s a good idea to make a regular backup of the Data Protector Express catalog. It will be included
automatically in any full backup of the Backup Domain
NOTE:
All information in the current Data Protector Express catalog will be lost when you use the Restore Catalog
command. This command does not append data to the current catalog; it replaces the current catalog
with the last known good catalog on that media.
NOTE:
You will be prompted stop and restart the service. Use the Data Protector Express Service Control Manager
to start and stop the Data Protector Express service.
Clean Device The Clean Device command will run the backup device through a cleaning cycle.
This command is supported only by libraries. If a device in a library provides notification that it needs
cleaning and the library has a cleaning cartridge available, a cleaning cycle will be performed
automatically at the start of a backup job. If you are using a device that is not a library, you must
manually clean the device at the manufacturer’s suggested intervals.
To clean a device in a library, highlight the device and select Clean Device from the Command bar. Data
Protector Express will check to see if one of the slots holds a cleaning cartridge. If it does, the cleaning
cycle will be performed in the background; if not, an error message is shown.
If the Clean Device command is missing, it is not available for your backup device. In this case, a
cleaning cycle can often be performed by manually inserting a cleaning cartridge into the backup device.
Start, Stop and Rescan
42 Working With Devices