Tandberg Data DAT 72, User Manual

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• Ensure that the tape drive is the only device on a USB hub
• Ensure that the Tandberg Data USB driver is being used
Check for USB 2.0 port (Windows)
It is important to ensure that you connect your drive to a USB 2.0 port. The
drive will work on a USB 1.1 port but performance will be severely degraded.
To check the port on a Windows system:
1. Go to Device Manager and select Devices by connection from the
View menu.
2. Expand Universal Serial Bus controllers and locate the tape drive.
3. If a USB driver is listed as Enhanced, the port is USB 2.0.
Ensure that the tape drive is the only device on a USB hub (Windows)
On some computers multiple physical USB 2.0 ports will be connected to
the same master port, known as a “root hub”. Connecting multiple devices
to one root hub may degrade tape drive performance degradation.
USB Mass Storage devices like DAT tape drives have the lowest priority of
all device types on the USB bus, so devices such as webcams should never
be connected to the same root hub.
To check the devices connected to a root hub:
1. Go to Device Manager and select Devices by connection from the
View menu.
2. Expand Universal Serial Bus controllers and locate the tape drive.
3. Trace the tree of devices back to the USB Root Hub and check that the
only device connected is the tape drive via the HP USB Mass Storage
Device.
Ensure that the hp_usbstor driver is being used (Windows)
The USB DAT drive will work with the Microsoft usbstor driver, however,
we strongly recommend that you use the Tandberg Data USB driver for
improved performance.
To check the driver being used:
1. Go to Device Manager and select Devices by connection from the
View menu.
2. Expand Universal Serial Bus controllers and locate the tape drive.
39
# August 2009
Verifying USB installation for optimum performance