HP 9000 rp4410-4 User Service Guide, Fifth Edition - HP 9000 rp4410/4440 - Page 97

Converting SCSI From Simplex to Duplex, Safety Information, Accessing the SCSI Backplane

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Converting SCSI From Simplex to Duplex This section explains how to convert the HP 9000 rp4410 or rp4440 server from simplex to duplex operation. The process involves removing a jumper, installing a duplex PCA card, and plugging in the stowed channel B cable to the appropriate sockets. A SCSI jumper cable bridges the two SCSI connectors on the SCSI backplane when the server is configured for simplex operation. You must remove this jumper in order to install the duplex board and to connect the SCSI B cable. Safety Information To ensure safe handling of components and to prevent harm to both you and the server, follow these steps: • Use an antistatic wrist strap and a grounding mat, such as those included in the Electrically Conductive Field Service Grounding Kit (HP 9300-1155). • Handle accessory boards and components by the edges only. Do not touch any metal-edge connectors or any electrical components on accessory boards. • Do not wear clothing subject to static charge build-up, such as wool or synthetic materials. WARNING! Ensure that the system is powered off and all power sources have been disconnected from the server before attempting this procedure. NOTE: Some restrictions apply to the mass storage devices that can be connected to the core I/O SCSI HBA. If you convert the server to duplex configuration, you cannot install external SCSI devices to the SCSI HBA core I/O controller. Accessing the SCSI Backplane Before adding the accessories required to convert the server from simplex to duplex, you must remove outer components to access the SCSI backplane. To gain access to the SCSI backplane, follow these steps: 1. If rack-mounted, slide the server out from the rack until it stops. See "Extend the Server from the Rack" (page 58). NOTE: If the server is pedestal-mounted, you need not remove the pedestal to perform the simplex to duplex conversion. Proceed directly to the next step. 2. Remove the front bezel. See "Removing the Front Bezel" (page 63). 3. Remove the front cover. See "Removing the Front Cover" (page 64). 4. Remove the memory extender board. See "Removing a Memory Extender Board" (page 86). 5. Remove the processor extender board. See "Removing the Processor Extender Board" (page 78). Converting to Duplex To convert to duplex, follow these steps: Installing Additional Components 97

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Converting SCSI From Simplex to Duplex
This section explains how to convert the HP 9000 rp4410 or rp4440 server from simplex to duplex
operation. The process involves removing a jumper, installing a duplex PCA card, and plugging
in the stowed channel B cable to the appropriate sockets.
A SCSI jumper cable bridges the two SCSI connectors on the SCSI backplane when the server is
configured for simplex operation. You must remove this jumper in order to install the duplex
board and to connect the SCSI B cable.
Safety Information
To ensure safe handling of components and to prevent harm to both you and the server, follow
these steps:
•
Use an antistatic wrist strap and a grounding mat, such as those included in the Electrically
Conductive Field Service Grounding Kit (HP 9300-1155).
•
Handle accessory boards and components by the edges only. Do not touch any metal-edge
connectors or any electrical components on accessory boards.
•
Do not wear clothing subject to static charge build-up, such as wool or synthetic materials.
WARNING!
Ensure that the system is powered off and all power sources have been
disconnected from the server before attempting this procedure.
NOTE:
Some restrictions apply to the mass storage devices that can be connected to the core
I/O SCSI HBA. If you convert the server to duplex configuration, you cannot install external SCSI
devices to the SCSI HBA core I/O controller.
Accessing the SCSI Backplane
Before adding the accessories required to convert the server from simplex to duplex, you must
remove outer components to access the SCSI backplane.
To gain access to the SCSI backplane, follow these steps:
1.
If rack-mounted, slide the server out from the rack until it stops. See
“Extend the Server
from the Rack” (page 58)
.
NOTE:
If the server is pedestal-mounted, you need not remove the pedestal to perform
the simplex to duplex conversion. Proceed directly to the next step.
2.
Remove the front bezel. See
“Removing the Front Bezel” (page 63)
.
3.
Remove the front cover. See
“Removing the Front Cover” (page 64)
.
4.
Remove the memory extender board. See
“Removing a Memory Extender Board” (page 86)
.
5.
Remove the processor extender board. See
“Removing the Processor Extender Board”
(page 78)
.
Converting to Duplex
To convert to duplex, follow these steps:
Installing Additional Components
97