HP D2D110 HP StorageWorks D2D Backup System User Guide (EH880-90950, October 2 - Page 110

I cannot create a device, I cannot see additional slots from the backup application

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• If it is accessible, there is a problem with the backup application. Certain backup applications require you to use their own drivers for both the tape device and medium changer. If this is the case, you must install the backup application drivers manually after the Installation wizard has completed. • Make sure that the iSCSI initiator is connected to the devices and log on to them, if they are not. See "Targets tab" on page 49 • If it is not accessible, rerun Discovery. I cannot create a device The HP D2D Backup System supports a maximum of six devices. I cannot see a newly created device When you create a new device on the HP D2D Backup System, the host will not be able to see the device until you connect manually to it using the iSCSI Initiator. See "Advanced installation" on page 45 for more information. If you still cannot see the device, check Device Manager to make sure it is visible from the host. I cannot see additional slots from the backup application When you create additional slots for an autoloader on the HP D2D Backup System, you may need to restart services on the backup application so that it can see the new slots. A deleted device keeps reappearing When you create a device with the Installation wizard it is always configured as a Persistent Target on the host. This means that the connection will automatically be restarted each time the host logs on to the HP D2D Backup System. To delete the connection, use the iSCSI Initiator as described in "Persistent Targets tab" on page 50. If backup is slow Are you connecting to a 10/100Base-T port? 100 Base-T will limit performance; 10 Base-T will severely limit performance. Check that other network traffic is not too heavy. Congested networks will slow performance, even on Gigabit. Check the backup application. If you are backing up a client of a backup server, the bottleneck may be in the backup server. Ensure that the host being backed up is not in use at the time of backup. Cartridge troubleshooting • Cannot resize cartridges • My tape drive has run out of space • My physical tape drive has a smaller capacity than the cartridge size on the HP D2D Backup System I cannot resize cartridges The only time you can resize cartridges is when you first create an autoloader or add slots and they are blank. Once the cartridges are made available to the backup application, it formats them ready for use and they are no longer blank, even if you have not yet written data to them. Similarly, the erase function on most backup applications does not return the cartridge to a blank state. 110 Troubleshooting

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•
If it is accessible, there is a problem with the backup application. Certain backup applications
require you to use their own drivers for both the tape device and medium changer. If this is
the case, you must install the backup application drivers manually after the Installation wizard
has completed.
•
Make sure that the iSCSI initiator is connected to the devices and log on to them, if they are
not. See “
Targets tab
” on page 49
•
If it is not accessible, rerun Discovery.
I cannot create a device
The HP D2D Backup System supports a maximum of six devices.
I cannot see a newly created device
When you create a new device on the HP D2D Backup System, the host will not be able to see the device
until you connect manually to it using the iSCSI Initiator. See “
Advanced installation
” on page 45
for more information.
If you still cannot see the device, check Device Manager to make sure it is visible from the host.
I cannot see additional slots from the backup application
When you create additional slots for an autoloader on the HP D2D Backup System, you may need to
restart services on the backup application so that it can see the new slots.
A deleted device keeps reappearing
When you create a device with the Installation wizard it is always con
fi
gured as a Persistent Target
on the host. This means that the connection will automatically be restarted each time the host logs
on to the HP D2D Backup System. To delete the connection, use the iSCSI Initiator as described in
“
Persistent Targets tab
” on page 50.
If backup is slow
Are you connecting to a 10/100Base-T port? 100 Base-T will limit performance; 10 Base-T will severely
limit performance.
Check that other network traf
fi
c is not too heavy. Congested networks will slow performance, even
on Gigabit.
Check the backup application. If you are backing up a client of a backup server, the bottleneck may be
in the backup server.
Ensure that the host being backed up is not in use at the time of backup.
Cartridge troubleshooting
•
Cannot resize cartridges
•
My tape drive has run out of space
•
My physical tape drive has a smaller capacity than the cartridge size on the HP D2D Backup
System
I cannot resize cartridges
The only time you can resize cartridges is when you
fi
rst create an autoloader or add slots and they are
blank. Once the cartridges are made available to the backup application, it formats them ready for use
and they are no longer blank, even if you have not yet written data to them. Similarly, the erase function
on most backup applications does not return the cartridge to a blank state.
110
Troubleshooting