IBM eServer zSeries 900 Technical Guide

Chapter 1. zSeries 900 overview 5

Figure 1-2 z900 functions and features

1.3.1 Processor

MultiChip Module technology

The MultiChip Module (MCM) for the z900 is an approximately 5-inch-square ceramic

substrate (20 PU models) consisting of 101 layers of glass ceramic and six layers of thin film

wired with 1 km of wire. The PU chip is based on CMOS 8SE with copper interconnect and

Silicon-on-insulator (SOI) technologies on turbo models, or CMOS 8S with copper

interconnect technology on non-turbo models.

20-PU MCM

The 20-PU MCM is the technology cornerstone for the z900, from a 1-way up to a full 16-way

server. Combining up to 32 z900s in a Parallel Sysplex, installations can realize up to

512-way processing.

While present installations may employ a conglomerate of multiserver systems, the z900

offers the new paradigm of the Multi-System Server (see Figure 1-3 on page 6). The z900

models offer unparalleled flexibility to the enterprise in speedy deployment of e-business

solutions.

B Frame

(for IBF

feature)

Processor

64-bit Architecture

20 PUs (max 16 CPs) - Turbo & non-Turbo

CMOS 8SE or 8S Technology

Crypto Coprocessors (SCM on board, CMOS 7S)

MCU on all models

Capacity Upgrade on Demand

Capacity BackUp

Customer Initiated Upgrade

Memory

64-bit architecture

Maximum memory = 64 GB

Concurrent memory Upgrade

I/O

64-bit architecture (43/48-bit I/O addressing in H/W)

Up to 256 ESCON channels (16-port ESCON cards)

Up to 24 x 1GB/s STIs Links

Up to 96 2Gb/s FICON Express Channels:

FC (native), FCV (Bridge) or FCP modes

Up to 88 Parallel channels (96 on upgrade on RPQ)

FICON CTC

CHPID assignment function

I/O priority queuing

Dynamic CHPID management

Open systems

OSA-2 (FDDI, Token Ring)

OSA-Express (GbEthernet, ATM, Fast EN, Token Ring)

HiperSockets

PCICC and PCICA

FCP for Linux

Parallel Sysplex

Coupling Facility model

ISC-3, ICB-3, ICB-2, IC-3

System-Managed CF Structure Duplexing

Intelligent resource Director

Hardware System Structure

Primary Service Element

Alternate Service Element

PSCN 2000

Z Frame

A Frame