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Quantum DAT 160 User's Guide
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 Quantum 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 Quantum USB Mass
Storage Device. See
device connected to a dedicated USB 2.0 root hub.
Ensure That the quantum_usbstor Driver is Being Used (Windows)
The Quantum USB DAT 160 drive will work with the Microsoft usbstor
driver, however, Quantum strongly recommends that you use the
quantumusbmsc driver for improved performance.
To check the driver being used:
1 Go to Device Manager and select
menu.
2 Expand Universal Serial Bus controllers and locate the tape drive.
3 If the tape drive is connected to the Quantum USB Mass Storage
Device, it is configured correctly (see
Verifying USB Installation for Optimum Performance
figure 24
for an example showing a single tape
Devices
figure
Chapter 5 Troubleshooting
by connection from the
24).
5
5
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