Features And Benefits Of The Hp Zx1 Chipset; Architectural Overview Of The Hp Integrity Rx2600 Server - HP rx2600 Overview

The HP zx1 Chipset is ideal for use with the Intel Itanium 2 processor because it complements the processor's
price/performance advantages. Moreover, the new HP chipset leverages HP's co-developer knowledge of the
CPU itself. Indeed, the HP zx1 Chipset was the turn-on vehicle for the Intel Itanium 2 processor in February 2001.
At that time, Itanium 2–based systems with the HP zx1 Chipset were already running HP-UX, Linux, and Microsoft
Windows.

Features and benefits of the HP zx1 Chipset

Feature
High memory bandwidth, low memory latency
High memory capacity
133 MHz PCI-X
Modularity

Architectural overview of the HP Integrity rx2600 server

The HP Integrity rx2600 server supports either one or two Intel Itanium 2 processors linked to the HP zx1 Chipset
memory and I/O controller through a 200 MHz, double-pumped 128-bit front-side system bus. Total bandwidth
on the system bus is 6.4 GB/s.
Figure 8. The HP Integrity rx2600 architecture features Intel Itanium 2 processors and the HP zx1 Chipset
Memory DIMMs are attached directly to two 266 MHz, 4.3 GB/s memory buses. Combined memory bandwidth
across both buses is 8.5 GB/s. Each bus links up to six double-data-rate (DDR) SynchDRAM memory DIMMs. Total
system memory capacity is 24 GB, via twelve 2 GB DIMMs.
The I/O architecture consists of eight 0.5 GB/s channels allocated among seven zx1 I/O adapters. Each of these
seven adapters provides a PCI-X or PCI bus to the available I/O slots and core I/O devices. The first two channels
connect to a single 133 MHz PCI-X I/O slot, providing 1 GB/s of sustained throughput. This slot is ideal for high-
bandwidth I/O adapters such as high-performance clustering interconnect. The next three I/O channels link to
three independent 133 MHz PCI-X I/O slots, each with 0.5 GB/s of sustained throughput. The remaining three
I/O channels link to three PCI buses, which in turn link to the core LAN, SCSI, IDE, and USB interfaces, and to the
management processor.
User benefit
Top application performance, faster time to solution
Optimum performance for large models/databases
Highest performance I/O adapters
Family of Itanium-processor-based servers and workstations, each
optimized for the right level of cost and scalability
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