IBM 88554RU Installation Guide - Page 55
Scalable system partitioning, Maximum configuration
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Do your applications support 64-bit hardware? Will you application migrate to provide true 64-bit performance? How long will it take to migrate your applications and how complex will it be? Will you 64-bit platform integrate seamlessly with your existing 32-bit platforms? 2.2 Scalable system partitioning With the power of Enterprise X-Architecture, the x455 sets the pace in the market for 8-way and 16-way multi-node partitions. It blends XpandOnDemand processor and I/O scalability with OnForever™ availability for mission-critical applications. The x455 has a modular and flexible design, which allows you to start with a configuration that meets your current needs and expand when your needs increase. This forms part of IBM's pay-as-you-grow strategy that allows customers to only pay for what they need. With the x455 you can start with a minimum configuration and scale up though several stages up to the maximum configuration, which is designed to meet the most demanding needs. These are listed below. Minimum configuration: 1 x server chassis 1 x Itanium 2 processor 1 GB RAM 6 x PCI-X slots 1 x 18.2 GB internal hard disk Maximum configuration: 4 x server chassis 16 x Itanium 2 processors 224 GB RAM 48 x PCI-X slots with the use of two RXE-100 8 x 146.8 GB internal hard disk = 1175 GB (587 GB in RAID-1 configuration) With the 64-bit architecture, IBM's X-Architecture, and its scalability options, the x455 has moved into territory that was traditionally the preserve of mini and mainframe systems. This offers the following advantages: Customers who have invested in Microsoft technologies can now scale up their applications. Chapter 2. Positioning 41
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