IBM s/390 manual Purpose of this redbook, ThinkPad/EFS systems

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1.1 Purpose of this redbook

This IBM Redbook introduces ThinkPad/EFS systems and describes the installation process for a particular configuration of these systems. The configuration used is the base configuration selected by IBM’s S/390 Partners in Development (PID)2 program for members of that program. Many of the specific details described here are for these PID systems and the OS/390 (and z/OS) software packages IBM provides for PID members who obtain systems through this program. However, the descriptions in this book can be generalized to apply to most other ThinkPad/EFS systems and installations.

ThinkPad/EFS systems are available only through IBM business partners, and are not available directly from IBM. In normal situations, the business partner performs the initial machine setup—including hardware installation, basic Linux operating system installation, initial disk configuration, and FLEX-ES installation. This redbook describes these same steps and, in a sense, describes steps that a normal ThinkPad/EFS user should not need to perform.

We include this material for several reasons:

￿Understanding how a system is set up, even though someone else may have done it for you, leads to a better understanding of the system.

￿The system owner may accidently (or intentionally) delete or destroy part of the underlying elements of his system. If this happens, he might ask his IBM business partner for assistance, or he might prefer to rebuild the system himself.

￿Significant upgrades to the underlying elements (hardware, Linux, FLEX-ES) may require a partial or complete rebuilding of the system. Again, the system owner has the option of using business partner assistance or implementing the upgrade himself.

After describing initial system setup, we describe the installation of an OS/390 Application Development CD-ROM system. These are usually known as AD systems, and are available only to PID members who obtain systems through the PID program. The OS/390 (and z/OS) systems involved are typical small implementations of these operating systems. The only unique factor is the packaging on CD-ROM. If you are not a PID member, this section of the document may not be of interest.

Another redbook, Netfinity Enabled for S/390, SG24-6501, duplicates much of the material in this ThinkPad Enabled for S/390 book. The ThinkPad material is based on Linux, while the Netfinity material is based on UnixWare or Open UNIX.3 A third redbook, NUMA-Q Enabled for S/390, SG24-6215, is based on different text and is a recommended companion to both the Netfinity and ThinkPad books, even though the NUMA-Q EFS system is no longer available.

1.2 ThinkPad/EFS systems

A ThinkPad/EFS machine is an IBM ThinkPad laptop running Linux (the Red Hat 7.1 distribution for the discussions in this redbook). A Linux application package, FLEX-ES, emulates a S/390 (processor and I/O). The emulated S/390 is used to run OS/390 and all the normal subsystems and applications that run under OS/390. FLEX-ES emulates typical S/390 I/O devices such as 3390 disks, 3480/3490 tape drives, and 3174 controllers. Normal 3270 terminal connections are through TN3270 sessions to a FLEX-ES program that makes these sessions appear to the emulated S/390 as local, non-SNA 3270 devices.

2Also known as IBM’s PartnerWorld organization.

3Open UNIX 8.0 is the replacement and upgrade product for UnixWare 7.1.1. References in this document to UnixWare also apply to Open UNIX.

2S/390 PID: ThinkPad Enabled for S/390

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Contents ThinkPad Enabled for S/390 Bill OgdenPage International Technical Support Organization First Edition October Contents Shutting down Index Vi S/390 PID ThinkPad Enabled for S/390 Special notice AuthorIBM trademarks Comments welcomeIntroduction Purpose of this redbook ThinkPad/EFS systemsFLEX-ES Linux Positioning with other small S/390sThinkPad/EFS hardware used Terminology System and Linux installation Disk planningDifferences Linux installation ThinkPadPartition Manually Partition Mount Point Device Requested Actual Type PurposeDevice Partition Type Default Boot 12.17.210255.255.255.0 12.17.150Gnome Installation notes Monitor Setup IBM 9513 T55A TFT No clock chip 24 bitSelect Start X automatically # df -hEtc/xinetd.d # vi telnet # ps -ef grep xinetd# kill -s USR1 pidnumber PID number for xinetd 14 S/390 PID ThinkPad Enabled for S/390 FLEX-ES and OS/390 installation FLEX-ES Brief introductionPC Processor in ThinkPad Page Installation Installing the FLEX-ES license key OS/390 AD systems Next stepsAD systems # mkdir /s3912 OS/390 on CD-ROM Basic CD-ROM formats3 OS/390 device configuration FLEX-ES formatsInstallation tasks Unzipping and installing Awsckd CD-ROM filesAn unzip program Mount /dev/cdrom /mnt/cdromMinor problems File ownershipVolume in two separate zip files Files unzip in wrong orderFLEX-ES Operation FLEX-ES system and resource definitions CommentsBuilding a shell script $ cd /usr/flexes/rundir# resadm -s R10A.rescf $ resadm -r$ sh shos Flexes ipl a80 0a82cs IPL OS/390 Terminal Solicitor=stor Operation and use User terminal connection11.42.47 A80,8Linux TN3270 Iodf requirementsSystem performance monitors Rmf5 TCP/IP for OS/390 Shutting down # resadm -T# resadm -k # exit36 S/390 PID ThinkPad Enabled for S/390 Additional Topics Basic debugging Operating Systems Messages console SecurityServer memory Vmstat command Importance of Linux swapping CPUUsing a second Linux hard disk Ultrabay# cat /proc/partitions Second disk planning Disk layout AD system Partition Mount Size UseDevice Volser Addr Use FLEX-ES FakeTape on OS/390 Alternative method560 222222Multi-system setup X3270 client $ x3270 -model 3 -keymap pc -port tn3270 localhost$ x3270 -model 3 -keymap pc -port tn3270 localhostt91f Function Keys Used# cd /usr/lib/X11/app-defaults # cp X3270 X3270old Remote resources# vi Disk caches System BWrites Cache Hits Tuning cachesize FSI Channel AdaptersBackup and restore considerations Scsi adapter for the ThinkPadDisk fragmentation Using tar to back up S/390 volumes $ tar -cvzf /holding/OS39RA.tarz /s390/OS39RAUsing tar and ftp $ cd /usr/flexes/rundir $ sh buOS39RAc16 S/390 identification CD-RW driveDisplay PSW and registers RAS discussionVerify ckd disk Linux windowsInstalling FLEX-ES upgrades ThinkPad power controlUseful Linux commands Common commandsMultiple consoles, sessions, screens Text editors62 S/390 PID ThinkPad Enabled for S/390 Frequently asked questions 64 S/390 PID ThinkPad Enabled for S/390 Frequently asked questions 66 S/390 PID ThinkPad Enabled for S/390 Frequently asked questions 68 S/390 PID ThinkPad Enabled for S/390 Appendix A. FLEX-ES definition listings Basic definitions for a single HDDShell script for a single HDD Definitions for two HDDs Shell script for two HDDs Appendix B. FLEX-ES parameters System definitionsCpu0 Cpu1 Cpu2 Resource definitions Emulated control unit typesEmulated device types Typical resource definitionsCKD disk resources Terminal resources Tape resources LAN resourcesCloned devices Resadm command Common rulesCLI commands Flexes mount A90 S390/WORK01 710 Altcons560 Home/tape3 84 S/390 PID ThinkPad Enabled for S/390 Special notices 86 S/390 PID ThinkPad Enabled for S/390 How to get IBM Redbooks IBM RedbooksReferenced Web sites Other resourcesIBM Redbooks collections Index Pipe Port Power control Terminal logo Terminal Solicitor 16, 18, 31, 39, 65 92 S/390 PID ThinkPad Enabled for S/390 Partners in Development ThinkPad Enabled for S/390 Page Page ThinkPad Enabled for S/390 System setup AD CD-ROM use System operation
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