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IBM s/390 manual System and Linux installation, Disk planning

Models: s/390

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Chapter 2. System and Linux installation

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Chapter 2. System and Linux installation

ThinkPad/EFS installation, with Linux, is much simpler than installation of other EFS platforms. There are three primary reasons for this:

The appropriate ThinkPad models can be used “out of the box.” We are unaware of any requirements for BIOS upgrades.1 There are no RAID functions to customize.

The server operating system (Red Hat Linux 7.1) is installed “out of the box.” We are unaware of any required patches or fixes essential for EFS use.

We can use simple Linux files for emulated S/390 disks.

All of these factors are subject to change, of course, and are likely to change with future systems. Nevertheless, we expect ThinkPad/EFS installation to remain simpler than installation of other EFS systems. A background consideration is that, because ThinkPad/EFS is not intended for production use, there is slightly less emphasis on using the latest BIOS fixes, latest Linux fixes, and most optimum disk performance techniques.

We elected to have Linux as the only PC operating system on our ThinkPad. You could create multiple primary partitions, install a boot manager of your choice, and install a Windows system in addition to Linux. This should be transparent to FLEX-ES, assuming you manage to install a functional Linux.

2.1 Disk planning

A little background on FLEX-ES disk techniques may be interesting, especially for those who have used or read about other EFS platforms. FLEX-ES uses raw disks on its other platforms. Using a UnixWare2 base (as used with current Netfinity/EFS systems) for discussion, the following elements are involved:

A raw disk is contiguous space on a hard disk. (This statement ignores the effects of RAID striping. The Server operating system sees a raw disk as contiguous space if a hardware RAID adapter is used.)

1This is not to say that you should not install BIOS upgrades. We are unaware of any that are required for using FLEX-ES.

2These comments also apply to Netfinity/EFS with an Open UNIX 8 base. Open UNIX 8 is the replacement release for UnixWare 7.1.1.

© Copyright IBM Corp. 2001

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IBM s/390 manual System and Linux installation, Disk planning

Contents

Front cover System setup AD CD-ROM use System operationBill Ogden ThinkPad Enabled for S/390Page October S/390 Partners in Development ThinkPad Enabled for S/390International Technical Support Organization First Edition October Contents Contents4.3 Shutting down Chapter 6. Frequently asked questionsiv S/390 PID ThinkPad Enabled for S/390 Index ContentsSpecial notices vi S/390 PID ThinkPad Enabled for S/390 The author PrefaceSpecial notice Comments welcome IBM trademarksChapter 1. Introduction 1.2 ThinkPad/EFS systems 1.1 Purpose of this redbook1.2.1 FLEX-ES 1.2.3 Positioning with other small S/390s 1.2.2 Linux1.3 ThinkPad/EFS hardware used 1.4 Terminology 2.1 Disk planning Chapter 2. System and Linux installationDifferences 2.2 ThinkPad 2.3 Linux installationPartition Manually Partition Mount PointThe installation prompts continued with fairly basic items Page 2.3.1 Installation notes # vi telnet etc/xinetd.d# ps -ef grep xinetd # kill -s USR1 pidnumber14 S/390 PID ThinkPad Enabled for S/390 Chapter 3. FLEX-ES and OS/390 installation 3.1.1 Brief introduction 3.1 FLEX-ESPC Processor in ThinkPad 18 S/390 PID ThinkPad Enabled for S/390 3.1.2 Installation 20 S/390 PID ThinkPad Enabled for S/390 Installing the FLEX-ES license key3.1.3 3.2.1 AD systems 3.2 OS/390 AD systems3.1.4 Next steps Basic CD-ROM formats 3.2.2 OS/390 on CD-ROMFLEX-ES formats 3.2.3 OS/390 device configurationUnzipping and installing AWSCKD CD-ROM files 3.2.5 Installation tasksUnzip and convert a volume 3.2.4 An unzip programLoad the other CDs 3.4 Minor problems3.3 File ownership Files unzip in wrong order Volume in two separate zip files3.4.1 Next steps Chapter 4. FLEX-ES Operation Comments 4.1 FLEX-ES system and resource definitions4.1.1 Building a shell script $ sh shos flexes ipl a80 0a82cs Terminal Solicitor 4.1.2 IPL OS/3904.2.1 User terminal connection 4.2 Operation and use4.2.4 System performance monitors 4.2.2 Linux TN32704.2.3 IODF requirements 4.2.5 TCP/IP for OS/390 4.3 Shutting down 36 S/390 PID ThinkPad Enabled for S/390 Copyright IBM Corp Chapter 5. Additional Topics38 S/390 PID ThinkPad Enabled for S/390 5.1 Basic debugging5.4 Server memory 5.2 Operating Systems Messages console5.3 Security 5.4.1 The vmstat command 5.4.2 Importance of Linux swapping 5.5 Ultrabay 5.5.1 Using a second Linux hard disk5.5.2 Second disk planning 5.5.3 Disk layout AD system 5.5.4 Alternative method 5.6 FLEX-ES FakeTape on OS/3903,222222 46 S/390 PID ThinkPad Enabled for S/3902,560 5.7 Multi-system setup 5.8 x3270 client # cd /usr/lib/X11/app-defaults 5.9 Remote resources# cp X3270 X3270old # viSystem A 5.10 Disk cachesSystem B System CHere is an example that uses all three options 5.12 FSI Channel Adapters 5.11 Tuning cachesize5.14 Disk fragmentation 5.15 Backup and restore considerations5.13 SCSI adapter for the ThinkPad 5.15.1 Using tar to back up S/390 volumes 5.15.2 Using tar and ftp 5.15.3 CD-RW drive 5.16 S/390 identification5.18 RAS discussion 5.17 Display PSW and registers5.20 Linux windows 5.19 Verify ckd disk5.22 ThinkPad power control 5.21 Installing FLEX-ES upgradesCommon commands 5.23 Useful Linux commandsCD-ROM Multiple consoles, sessions, screensText editors 62 S/390 PID ThinkPad Enabled for S/390 Chapter 6. Frequently asked questions Q Can I run a ThinkPad in 24x7 operation? 24 hours/day, 7 days/week A Yes Q How do I order a ThinkPad/EFS system? What if I am not a PID member? Q What is the difference between swapping and paging? Q How long does the ThinkPad battery last? Basic definitions for a single HDD Appendix A. FLEX-ES definition listings70 S/390 PID ThinkPad Enabled for S/390 Shell script for a single HDDAppendix A. FLEX-ES definition listings Definitions for two HDDs72 S/390 PID ThinkPad Enabled for S/390 Shell script for two HDDsSystem definitions Appendix B. FLEX-ES parameterschannel3 local channel1 local 74 S/390 PID ThinkPad Enabled for S/390cpu0 cpu1 cpu2 Emulated control unit types Resource definitions76 S/390 PID ThinkPad Enabled for S/390 Emulated device typesTypical resource definitions resourcename cu cutype parameters end resourcename CKD disk resources3270 terminal resources LAN resources Tape resources$ echo ‘mount 703 bills’ flexescli localhost S10A $ echo ‘mount 704 @9.12.17.211’ flexescli localhost S10A80 S/390 PID ThinkPad Enabled for S/390 Cloned devicesCommon rules The resadm commandCLI commands Here are a few brief notes concerning CLI commands 84 S/390 PID ThinkPad Enabled for S/390 Special notices through The Open Group Numa-Q Enabled for S/390 Technical Introduction, SG24-6215 How to get IBM RedbooksS/390 Partners in Development NetFinityEnabled for S/390, SG24-6501 FLEX-ES Concepts, FSIMM020 FLEX-ES Technical FAQ, FSIMM04088 S/390 PID ThinkPad Enabled for S/390 IBM Redbooks collectionsNumerics SymbolsIndex Page Page 92 S/390 PID ThinkPad Enabled for S/390 0.2”spine 0.17”-0.473” 90-249 pages S/390 Partners in Development ThinkPad Enabled for S/390Page Page Back cover System setup AD CD-ROM use System operationThinkPad Enabled for S/390 S/390 Partners in Development