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Service Hints & Tips

Document ID: MCGN-3VCTUK

PCServer520 - Parts required to add backplanes or hard drives

Applicable to: World-Wide

This document is intended to correct incorrect part number information in the Marketing Catalog. The part numbers below are correct.

PC Server 520 - Type II Backplane
(133Mhz processor and below) (ED2, EDG, EZ0, EZ1, EZE, EZS, EZV, MD0, MD2, MDG, MZ0, MZE, MZL, MZS, MZV)

The parts required to add 2 or more backplanes or configure more than 6 hot swap hard drives internally are listed below:

Type II Backplane:

P/N 94G4605 ships with cable for
Microchannel SCSI cards

FRU 06H8388

PCI SCSI Cable:

P/N 94G3988

FRU 06H6876
( PCI SCSI Cable - PCI cards only)

220 Watt Power Supply Upgrade:

P/N 70G9739

FRU 06H3237 (sub to 12J5701)


Note: Daisy Chaining of Type II Backplanes is not supported.

PC Server 520 Type III Backplane
(166Mhz processor) (EE0, EE1, EEE, EEL)

The parts required to add 2 or more backplanes or configure more than 6 hot swap hard drives internally are listed below:

Hot Swap Type III Backplane

P/N 76H2670

FRU 76H2671

PCI card to Backplane Cable

P/N 94G3988

FRU 06H6876

220 Watt Power Supply Upgrade

P/N 70G9739

FRU 06H3237 (sub to 12J5701)

Daisy Chain Backplane cable

P/N 94G4070

Note: Daisy chaining of type III backplanes is supported.

(Installation considerations from Announcement Letter 196-134)
Internal Hot-Swap Expansion Considerations for Non-Array Models: When adding second or third banks of hot-swap hard disk drives, it is necessary to install the PC Server Power Supply Upgrade (70G9739) in addition to the PC Server Hot-Swap Backplane III (76H2670) and SCSI PCI Card to Backplane Fast/Wide Cable (94G3988) options. Also, an appropriate SCSI adapter, such as the PC Server SCSI-2 Fast/Wide PCI Adapter II (94G4673), is required for attachment of the backplane.

Internal Hot-Swap Expansion Considerations for Array Models: Array models support up to 12 SCSI-2 hot-swap hard drives per channel. When adding a second hot-swap backplane, a PC Server Power Supply Upgrade (70G9739) is required in addition to the PC Server Hot-Swap Backplane III (76H2670) and SCSI PCI Card to Backplane Fast/Wide Cable (94G3988). One end of the SCSI-2 PCI Card to Backplane Fast/Wide Cable is connected to one of the remaining two internal connectors on the PC ServeRAID SCSI Adapter, while the other end is connected to the hot-swap backplane. If installing a third PC Server Hot-Swap Backplane III, a Backplane-to-Backplane Cable (94G4070) can be used to daisy chain from the second backplane. This eliminates the need to use a second SCSI PCI Card to Backplane Fast/Wide Cable. However, for performance considerations, the third backplane can be cabled directly to the PC ServeRAID SCSI Adapter through the use of SCSI PCI Card to Backplane Fast/Wide Cable. Daisy chaining more than two backplanes per connector/RAID channel is not supported.

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Hint Category

Configuration, Hard Drives, Processors

Date Created

12-06-98

Last Updated

22-01-99

Revision Date

12-06-99

Brand

IBM PC Server

Product Family

PC Server 520

Machine Type

8641

Model

ED2; EDG; EZ0; EZ1; EZE; EZS; EZV; MD0; MD2; MDG; MZ0; MZE; MZL; MZS; MZV; EE0; EE1; EEE; EEL

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