IBM Type 8677, Type 1881 Device Suggested action, Select USB Mass Storage Device, and click Stop

Table 2. Troubleshooting charts (continued)

Device	Suggested action
CD-ROM cannot be	The customer interface card (FRU number 59P6629) is not compatible with the JS20
configured with a JS20 blade	blade server and must be replaced with the latest level FRU.
server but works with a HSxx	Note: The customer interface card installed in the BladeCenter is listed as the
blade server.	"media tray" instead of the "customer interface card" on the Hardware VPD view of
	the management-module web interface. The FRU number is also printed on the
	customer interface card. Replace the customer interface card with the latest level,
	see Chapter 7, “Parts listing, BladeCenter Type 8677 and 1881,” on page 79for the
	correct FRU number.
Some components do not	The green status dot for a component is not automatically a link to environmental
report environmental status	information (temperature and voltage) for the component. Only the management
(temperature, voltage).	module and blade servers have environmental information, and only the green dot for
	those components contains a link to environmental information.
Switching KVM control	If a blade server is under heavy load, it can take several minutes before it
between blade servers gives	enumerates the USB devices connected to it. If control of the KVM and media tray is
USB device error.	switched away from the blade server before this enumeration is complete, a USB
	device installation error might be displayed. Do not switch KVM control between
	blade servers until the mouse and keyboard are both working on the blade server
	that has control of the KVM and media tray.
“Unsafe Removal of Device”	Before switching ownership of the media tray to another blade server, safely stop the
error message appears on	media tray devices on the blade server that currently owns the media tray, similar to
blade server running	the following:
Microsoft Windows 2000.	1. Double-click the Unplug or Eject Hardware icon in the Windows taskbar at the
	bottom right of the screen.
	2. Select USB Floppy, and click Stop.
	3. Select USB Mass Storage Device, and click Stop.
	4. Click Close.
	You can now safely switch ownership of the media tray to another blade server.
“Media not found” error	Attempting to access the mounted optical drive or diskette drive (media tray) after it
message and other file	has been switched to another blade server results in I/O errors, even if the media tray
system error occur on a blade	has been switched back.
server running Linux or DOS.	Note: Because the BladeCenter unit uses a USB bus to communicate with the media
	tray devices, switching ownership of the media tray to another blade server is the
	same as unplugging a USB device.
	v If a blade server tries to access the optical drive after it has been switched to
	another blade server, a “Media not found” error occurs.
	v If a blade server is running a DOS environment, such as when updating firmware
	on the blade server, the firmware can be interrupted or corrupted when the media
	tray is switched away; you might need to call for service on the blade server.
	v If a file handle was left open by switching the media tray away, the system
	administrator will not be able to do a clean unmount (umount command) unless the
	unmount is forced by umount command parameters (“lazy umount”).
	v If the system administrator is sharing out the optical drive for multiple users, that
	network share is broken.
	Before switching ownership of the media tray to another blade server, ensure that the
	optical drive and diskette drive are not mounted for the current blade server owner
	(check for open file handles and sharing out). If a firmware update is taking place on
	the blade server, do not switch the media tray to another blade server.

Chapter 6. Symptom-to-FRU index 61