IBM 8651RM0 Hardware Maintenance Manual - Page 41

Hardware Configuration Conflicts

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Setting SCSI IDs for External Devices: Each SCSI device that is connected to a SCSI controller must have a unique SCSI ID, so that the SCSI controller can identify the devices and ensure that different devices do not attempt to transfer data at the same time. SCSI devices that are connected to different SCSI controllers can have duplicate SCSI IDs. Refer to "SCSI IDs" on page 130 and to the instructions that come with the SCSI devices for more information about setting a SCSI ID. Installation Procedure: To attach an external device: 1. Power-off the server and all attached devices. 2. Follow the instructions that come with the option to prepare it for installation and to connect it to the server. Hardware Configuration Conflicts Use the following information to help resolve hardware configuration conflicts: 1. Run the System Configuration Utility program to view and change the resources that are used by the system board functions. Record the current settings before making any changes. 2. Determine which adapter or device is causing the error. Use the Change Configuration Settings selection in the System Configuration Utility program to update system configuration information (.CFG) files. (See "Step 3: Change Configuration Settings" on page 48 for instructions.) 3. Change configuration resource allocations. Use the Change Configuration Settings selection in the System Configuration Utility program to view or change system-board resource allocations. (See "Step 3: Change Configuration Settings" on page 48 for instructions.) 4. Change adapter jumpers or switches. Jumpers and switches define the system resources that a device can use. If the settings are incorrect or set to use a resource that cannot be shared, a conflict occurs and the device remains deactivated. Use the Switch/Jumper Settings selection in the System Configuration Utility program to verify switches (see "Step 5: View Switch/Jumper Settings" on page 48). Read the documentation that comes with the device. 5. Change system board jumpers or switches. 6. Remove the device or adapter. Some configurations are not supported (for example, you cannot operate the server with two ISA SVGA adapters installed). IBM Netfinity 7000 - Type 8651 33

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Setting SCSI IDs for External Devices:
Each
SCSI device that is connected to a SCSI controller must
have a unique SCSI ID, so that the SCSI controller can
identify the devices and ensure that different devices do
not attempt to transfer data at the same time.
SCSI
devices that are connected to different SCSI controllers
can have duplicate SCSI IDs.
Refer to “SCSI IDs” on
page
130 and to the instructions that come with the SCSI
devices for more information about setting a SCSI ID.
Installation Procedure:
To attach an external
device:
1.
Power-off the server and all attached devices.
2.
Follow the instructions that come with the option to
prepare it for installation and to connect it to the
server.
Hardware Configuration Conflicts
Use the following information to help resolve hardware
configuration conflicts:
1.
Run the System Configuration Utility program to view
and change the resources that are used by the
system board functions.
Record the current settings
before making any changes.
2.
Determine which adapter or device is causing the
error.
Use the Change Configuration Settings
selection in the System Configuration Utility program
to update system configuration information (
.CFG
)
files.
(See “Step 3: Change Configuration Settings”
on page
48 for instructions.)
3.
Change configuration resource allocations.
Use the
Change Configuration Settings selection in the
System Configuration Utility program to view or
change system-board resource allocations.
(See
“Step 3: Change Configuration Settings” on page
48
for instructions.)
4.
Change adapter jumpers or switches.
Jumpers and
switches define the system resources that a device
can use.
If the settings are incorrect or set to use a
resource that cannot be shared, a conflict occurs and
the device remains deactivated.
Use the
Switch/Jumper Settings selection in the System
Configuration Utility program to verify switches (see
“Step 5: View Switch/Jumper Settings” on page
48).
Read the documentation that comes with the device.
5.
Change system board jumpers or switches.
6.
Remove the device or adapter.
Some configurations
are not supported (for example, you cannot operate
the server with two ISA SVGA adapters installed).
IBM Netfinity 7000 - Type 8651
33