Troubleshooting 7-25
Is the power-on order correct?
o When the server has any external devices connected, power on the external
devices first, then the server.
Did you install drivers for connected optional devices?
o Some optional devices require specific device drivers. Refer to the manual that
comes with the device to install its driver.
Is SCSI controller (including options) configuration correct?
o If the sever has an optional SCSI controller board and SCSI devices are hooked up
to the server, make correct settings by the SCSI controller board’s SCSI BIOS
utility. For details, see manuals included with the SCSI controller board.
Is SCSI device configuration correct?
o If external SCSI devices are connected to the server, you need to make settings of
SCSI ID and terminal resistance. For details, see manuals included with the SCSI
device.
Does the SCSI driver recognize the target devices?
o Execute the following command to check if the SCSI driver recognizes the target
devices.
>cat /proc/scsi/scsi
Is a driver which supports the SCSI device loaded to kernel?
o Execute the following command to check if a driver which supports the SCSI
device is loaded to kernel.
>lsmod
CPUs not in Duplex mode:
o Check if the memory configuration is correct.
o Check if third-party CPUs or memory (DIMM) are used.
BIOSes not in Duplex mode due to differences between both modules:
o Check if the setting of [Automatic firmware update] is disabled on the [System
Setting] screen on the main window of [Server Maintenance Utility].
o If the setting of [Automatic firmware update] is enabled and modules are
remounted, BIOSes are automatically updated and duplicated. At this time, it is
recommended to reduce the load of the system as much as possible.
Disks not in Duplex mode:
o Unless you perform mirroring (including reconfiguration after failed disks are
replaced) in correct order, the mirror may not be (re)configured. Check if the steps
were correct.
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