ClearCube I/Port Quick Reference Guide - Manual (Page 31)

ClearCube I/Port User’s Guide, Rev. C I/Port Installation • 27
• Test your USB peripherals before putting them into a production
environment. I/Ports are USB 1.1 or USB 2.0 compliant, depending on model
number. I/Port peripherals, including USB devices, rely on redirection by RDP to
work properly. RDP can only redirect the following devices: mass storage,
printers, serial ports and smart card readers. ClearCube Technology maintains a
list of peripherals (including USB devices) that are fully tested and certified for use
with ClearCube-supplied User Ports, including I/Ports. This list is kept up-to-date
and is available on the ClearCube Support website at
http://support.clearcube.com/ as Technical Bulletin TB0109, Certified
Peripherals for C/Ports and I/Ports. Because of the wide range of peripherals
available, ClearCube is unable to test all devices. If your peripheral is not on this
list, contact your Account Executive to ask about ClearCube certification services.
• Limit the number of USB peripherals connected to your I/Port. When
connecting more USB devices to an I/Port than there are available ports (three
ports on the I8020/I8820, and four ports on the Eon e100), you need a USB hub.
You should select a powered USB hub to reduce the likelihood of drawing too
much power from the I/Port's USB port(s). ClearCube has observed unpredictable
results when simultaneously attaching more than six USB devices to an I/Port.
USB devices with motors, such as CD-ROM or DVD drives, are the devices most
likely to exceed power ratings.
• Occasionally, USB devices fail to enumerate correctly when inserted or
removed. When inserting a device that supports RDP redirection into a peripheral
port on the I/Port, it should enumerate (display as a device on the PC blade
desktop). Allow a few seconds for this to occur. If the device does not enumerate,
try refreshing the desktop or the folder window. This usually resolves the problem.
If this does not work, check the system tray for the device and eject it (if
displayed), unplug the device, and then reattach it. Sometimes this problem is
caused by a USB device overloading the power rating for the I/Port's USB hub.
Using an externally powered USB hub will reduce this problem.
When removing a USB device, always eject it from the system tray and wait for
confirmation before physically unplugging it. If the device's icon persists on the
desktop after it has been physically removed, refresh the window or desktop. A
reboot of the I/Port may be required.
I8330 I/Ports
Because the I8330 I/Port requires a connection to be established via the I83xx Admin
Utility or I83xx Driver, certain limitations apply on the usage of I8330s as connection
devices.
• Do not use an I8330 I/Port for administration duties. Use a C/Port or an
RDP-connected device (such as an I8820 I/Port or a “white box” system) for blade
administration.
The I83xx Driver software is supported only on Windows XP. Support on other
operating systems is not available, so the I8330 cannot be used to administrate a
Virtual Machine (VM) Host.
• Do not install the I83xx Driver on a system that also has the I83xx Admin
Utility installed. These two applications are incompatible, and using them on the
same system will cause unexpected results.