IBM SCOD-3ZVQ5W User Manual

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12. Memory can be installed using one of two methodologies: Performance installation or cost-effective

installation. Performance installation populates one pair of DIMMs per memory card, until four cards are
installed, before adding a second pair of DIMMs to a card. Cost-effective installation fully populates each
memory card before adding additional cards.

13. Single core Datacenter solutions containing more than 16 processors require one Scalability

Enablement/Memory Adapter (P/N 41Y5004) per chassis. x3950 E dual core Datacenter solutions
containing 16 processors and greater require one Scalability Enablement/Memory Adapter (P/N
41Y5004) per chassis. Proof of the appropriate U.S. Government Export License must exist before this
option can be ordered or shipped to Tier 3 countries. In addition to providing scalability support, this
adapter supports four memory DIMMs and can be used in place of one of the standard, four-slot
memory adapters.

14. This option kit includes the components necessary to upgrade systems that currently have single-core

Intel Xeon MP processors installed to support the dual-core Intel Xeon MP processors. Processors are not
included in the kit and must be purchased separately. Once the system is upgraded, the new system
model type must be registered with IBM. Directions for registering the new system model type are
included in the option.

15. A maximum of two ServeRAID 8i controllers is allowed per Datacenter node (each instance of the

operating system). One of the two ServeRAID 8i controllers must be installed in the x3950. The other
ServeRAID 8i controller can be installed in an x3950 E to fit your configuration.

16. Minimum two identical HDDs required per node on primary server (x3950) for OS. HDDs are optional

for x3950 E. Max = 6 HDDs per chassis.

17. Minimum two required per node on primary server (x3950) for load balancing and redundancy. Optional

for x3950 E.

18. One required per chassis for service processor interconnection. The service processors of all chassis must

be connected together via an ethernet network.

Datacenter high availability solution additional options

Table 49. Datacenter High Availability Solution Additional Options

Additional, certified options for use with IBM Datacenter solutions.

Option

Number

Description

Comment

Disk Systems

Can be attached to both x3950 and x3950 E.

181582H

TotalStorage DS4800 Midrange Disk System

181584H

TotalStorage DS4800 Midrange Disk System

181588H

TotalStorage DS4800 Midrange Disk System

I/O Controllers

31P9601

PRO/1000 MT Server Ethernet Adapter by Intel