Red Hat ENTERPRISE LINUX AS 2.1 - Przewodnik Instalacji Pobierz pdf (Strona 9)

Chapter 1.

Steps to Get You Started

The installation process assumes a basic familiarity with the IBM S/390 and IBM eServer zSeries

platforms. For additional information on these platforms, refer to the IBM Redbooks available online

at:

http://www.redbooks.ibm.com/

This manual assumes you are familiar with the related Redbooks and can set up logical partitions

(LPARs) and virtual machines (VMs) on an S/390 or IBM eServer zSeries system.

Note

For the most current IBM resources, visit http://www.ibm.com/eserver/zseries/.

Before you install Red Hat Enterprise Linux, you must to perform the following steps:

1. Allocate sufﬁcient DASD

or SCSI

partitions to provide suitable disk space (for example, 2 GB

is sufﬁcient for server installations, while 5 GB is minimally required to install all packages).

2. Acquire a minimum of 256 MB RAM (512 MB is strongly recommended) to designate for the

Linux virtual machine.

3. Determine if you need swap space and if so how much. While it is possible (and recommended)

to assign enough memory to z/VM and let z/VM do the necessary swapping, there may be cases

where the amount of required RAM is not predictable. Such instances should be examined on a

case-by-case basis.

4. Decide what environment under which to run the Red Hat Enterprise Linux operating system

(on an LPAR or as a guest operating system on one or more virtual machines).

5. Finally, it is important to review sections 3.3 through 3.8, and Chapters 5 and 6 of the IBM Linux

for S/390 Redbook, as it explains the different conﬁgurations and install scenarios available on

the S/390 platform as well as how to setup an initial LPAR or Linux virtual machine (z/VM).

1.1. Additional S/390 Hardware Preparation for Installation

Notes

The network conﬁguration must be determined beforehand. Red Hat Enterprise Linux for S/390 sup-

ports multiple network devices including CTC (channel-to-channel), IUCV (inter-user communication

vehicle), LCS (LAN channel station), and QDIO-enabled (Queued Direct I/O) devices.

For the purposes of this installation, it is recommended that at least 4 GB of disk space (such as two 2

GB DASD, direct access storage device, partitions or equivalent zSeries SCSI LUNs) be allocated for

the installation process. All DASD disk allocations should be completed prior to the install process.

1. Direct Access Storage Devices (or DASDs) are hard disks that allow a maximum of three (3) partitions per

DASD. For example, dasda has dasda[123].

2. Using the zFCP driver over ﬁber and a dedicated switch, SCSI LUNs can be presented.

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Red Hat ENTERPRISE LINUX AS 2.1 - Przewodnik Instalacji Strona 9