IBM s/390 manual ThinkPad/EFS hardware used

	S/390	Rel	Typical	Internal	Typical	S/390	Significant
	CPUs	CPU	S/390	Disk	Internal	Chans	Features
		Perf	Storage	Perform	Disk
			in MB		Capacity
StarterPak	1	4+	1024	Good	90 GB	4	LPARs
model A10			fixed			ESCON	Crypto hardware
							ICMF
							OSA-2

This table is intended only as a starting point for positioning a ThinkPad/EFS system and needs a number of qualifications:

￿The relative CPU performance numbers shown are rough indications of processor performance. Total system performance is dependent on many other factors as well, including memory size and disk performance. Also, processor performance depends on the nature of the workload and may vary considerably from the indicated ratios. Do not attempt to use this table for anything other than positioning the EFS models listed relative to the other specific machines shown.

￿ThinkPad/EFS is shown as less than 1 CPU. This indicates that the single PC processor in the ThinkPad must be shared between Linux processes (such as S/390 emulated I/O) and S/390 instruction emulation.

￿An x/Series 430 EFS system can have 1, 2, or 3 processors enabled for S/390 processing.

￿Many of these machines can have a wide range of memory installed. The numbers shown are intended to represent typical systems.

￿All the machines except the StarterPak can have a wide range of disk storage installed. Again, the numbers shown are intended to represent typical installations. The numbers represent effective disk capacity, after RAID or mirroring overhead.

￿The S/390 Chans column refers to S/390 channel connectivity, using ESCON and parallel channels. All of the systems offer some channel connectivity, but all except the MP3000 are quite limited in this area.

￿This table ignores RAS characteristics. The PC-based machines (Netfinity/EFS, ThinkPad/EFS and all the P/390-based machines) are designed to different RAS standards than the more industrial strength MP3000 and StarterPak systems. This may be an important factor when selecting a system for essential 24x7 production requirements.

1.3ThinkPad/EFS hardware used

ThinkPad/EFS systems are provided through IBM business partners. They cannot be ordered directly from IBM. Different business partners may start with slightly different base configurations and offer different options. The system we describe in this redbook should closely match most starting configurations offered by business partners.

The basic hardware requirements are:

￿A Thinkpad in the A21p, A22p, A23 (or T23) series, or one that is closely compatible, is the only supported base at the time of writing.

￿A major compatibility requirement is that the X windows support in Red Hat Linux 7.1 must operate correctly with the ThinkPad display.

￿It must have a USB port (for the FSI license dongle).

￿It should have 512 MB memory (or more, if available).

￿It should have at least one 32 GB (or larger) disk drive.

￿The option for a second 32 GB (or larger) drive (swappable in the slot used by the CD-ROM drive and the diskette drive) should be considered.

Chapter 1. Introduction 5