Skip to main content

Removable-media drive problems

Use this information to diagnose and resolve removable-media drive problems in the blade server.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. The removable-media (CD or DVD) drives are shared BladeCenter chassis resources. First, make sure that the drives are assigned to the blade server; then, see the following table and Solving shared BladeCenter resource problems.

For additional troubleshooting information, go to http://www.ibm.com/support/docview.wss?uid=psg1MIGR-41559.

  • See Parts listing - BladeCenter HX5 to determine which components are CRUs and which components are FRUs.
  • If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician.
SymptomAction
All removable-media drive problems. The media-tray select button LED on the front of the blade server is lit, indicating that the blade server is connected to the shared removable-media drives.
  1. Check the function of the shared BladeCenter chassis resources. See Solving shared BladeCenter resource problems.
  2. Run the Setup utility and make sure that the drive is enabled. See Using the Setup utility.
  3. For SAS storage drive problems, make sure that the correct device driver is installed. For the latest device drivers, go to http://www.ibm.com/systems/support/.
  4. Reseat the battery. See Removing the battery and Installing the battery.
  5. Replace the battery. See Removing the battery and Installing the battery.
  6. (Trained service technician only) Replace the system-board assembly. See Removing the system-board assembly - BladeCenter HX5 and Installing the system-board assembly - BladeCenter HX5.
The CD or DVD drive is detected as /dev/sr0 by SUSE Linux. (If the SUSE Linux operating system is installed remotely on a blade server that is not the current owner of the media tray [CD or DVD drive and USB port], SUSE Linux detects the CD or DVD drive as /dev/sr0 instead of /dev/cdrom.)Establish a link between /dev/sr0 and /dev/cdrom as follows:
  1. Enter the following command:
    rm /dev/cdrom; ln -s /dev/sr0 /dev/cdrom
  2. Insert the following line in the /etc/fstab file:
    /dev/cdrom /media/cdrom auto ro,noauto,user,exec 0 0
The CD or DVD drive is not recognized after being switched back to the blade server running Windows 2000 Advanced Server with SP3 applied. (When the CD or DVD drive that is owned by blade server x is switched to another blade server, then is switched back to blade server x, the operating system in blade server x no longer recognizes the CD or DVD drive. This happens when you have not safely stopped the drives before you switched ownership of the media tray [CD or DVD drive and USB port]).
Note
Because the BladeCenter chassis uses USB to communicate with the media tray devices, switching ownership of the media tray to another blade server is the same as disconnecting a USB device. Before you switch ownership of the CD or DVD drive (media tray) to another blade server, safely stop the media tray devices on the blade server that currently owns the media tray, as follows:
  1. Double-click the Unplug/Eject Hardware icon in the Windows taskbar.
  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.