IBM s/390 manual OS/390 AD systems, Next steps, # mkdir /s391

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3.1.4 Next steps

We created mount point /s390 when we installed Linux. It is the large file system that occupies most of our hard disk. We intend to use a second hard disk (in the Ultrabay slot of the ThinkPad) and we can create a mount point for it now. (We will initialize and mount the second hard disk later.) Both mount points should be owned by userid flexes because they will be used to hold emulated S/390 volumes:

# mkdir /s391

(mount point for second hard disk)

#chown flexes:flexes /s390

#chown flexes:flexes /s391

The names s390 and s391 are arbitrary, of course, but they express the purpose of the file systems.

You next need to install your S/390 operating system. We used an AD system; this is described next. If you use another installation method, you need to work with it now. After the S/390 operating system is installed, you need to create matching FLEX-ES definitions and then test the system. This is described in Chapter 4, “FLEX-ES Operation” on page 27.

3.2 OS/390 AD systems

In principle, you can install OS/390 on your ThinkPad/EFS using any of the distribution media and logical packaging available from IBM.6 In practice, most of IBM’s S/390 Partners in Development (PID) members use a CD-ROM package that is available only to members of their group who obtained a system through the PID organization. At the time of writing, IBM does not provide a more general OS/390 or z/OS distribution packaged on CD-ROM.

3.2.1 AD systems

We chose an OS/390 AD CD-ROM system (OS/390 release 2.10) for the ITSO projects used to produce this redbook. Not all readers are familiar with these “AD” systems; we briefly explain them here.

An AD (Application Development) system is a prepackaged OS/390 (or z/OS), with a number of priced features and additional program products included.7 Considerable customization has already been done, making the system immediately usable for many functions. The AD systems are available only to members of IBM’s PartnerWorld for Developers (formerly known as Partners in Development, or PID) who obtain systems through the PID program. They are not available to general IBM customers.

Why did we use it for our EFS projects? We used it primarily because it provides a very easy way to install a useful OS/390 system. We could have built an OS/390 system starting with a ServerPac, in the same way most OS/390 customers build their systems. However, this requires considerably more time and effort and would have detracted from the time spent working with EFS elements. It would also require a S/390 with tape drives compatible with the ServerPac media, and the ThinkPad does not meet this requirement.

In general, an OS/390 AD system is a rather straightforward implementation of OS/390 and contains no magic components or “clever” setups. The experience and results of using it on ThinkPad/EFS should be about the same as using any other straightforward OS/390 implementation.

6This statement assumes you have a tape drive on your ThinkPad/EFS that is compatible with the IBM-provided media, of course.

7There are AD systems available for VM/ESA and VSE/ESA also. The discussion in this chapter is about OS/390, so we limit this discussion to the OS/390 AD systems.

Chapter 3. FLEX-ES and OS/390 installation 21

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Contents Bill Ogden ThinkPad Enabled for S/390Page International Technical Support Organization First Edition October Contents Shutting down Index Vi S/390 PID ThinkPad Enabled for S/390 Author Special noticeComments welcome IBM trademarksIntroduction ThinkPad/EFS systems Purpose of this redbookFLEX-ES Positioning with other small S/390s LinuxThinkPad/EFS hardware used Terminology Disk planning System and Linux installationDifferences Mount Point Device Requested Actual Type Purpose Linux installationThinkPad Partition Manually Partition12.17.150 Device Partition Type Default Boot12.17.210 255.255.255.0Gnome # df -h Installation notesMonitor Setup IBM 9513 T55A TFT No clock chip 24 bit Select Start X automatically# ps -ef grep xinetd Etc/xinetd.d # vi telnet# kill -s USR1 pidnumber PID number for xinetd 14 S/390 PID ThinkPad Enabled for S/390 FLEX-ES and OS/390 installation Brief introduction FLEX-ESPC Processor in ThinkPad Page Installation Installing the FLEX-ES license key # mkdir /s391 OS/390 AD systemsNext steps AD systemsBasic CD-ROM formats 2 OS/390 on CD-ROMFLEX-ES formats 3 OS/390 device configurationMount /dev/cdrom /mnt/cdrom Installation tasksUnzipping and installing Awsckd CD-ROM files An unzip programFile ownership Minor problemsFiles unzip in wrong order Volume in two separate zip filesFLEX-ES Operation Comments FLEX-ES system and resource definitions$ resadm -r Building a shell script$ cd /usr/flexes/rundir # resadm -s R10A.rescf$ sh shos Flexes ipl a80 0a82cs Terminal Solicitor IPL OS/390=stor A80,8 Operation and useUser terminal connection 11.42.47Rmf Linux TN3270Iodf requirements System performance monitors5 TCP/IP for OS/390 # exit Shutting down# resadm -T # resadm -k36 S/390 PID ThinkPad Enabled for S/390 Additional Topics Basic debugging Security Operating Systems Messages consoleServer memory Vmstat command CPU Importance of Linux swappingUltrabay Using a second Linux hard disk# cat /proc/partitions Second disk planning Partition Mount Size Use Disk layout AD systemDevice Volser Addr Use Alternative method FLEX-ES FakeTape on OS/390222222 560Multi-system setup Function Keys Used X3270 client$ x3270 -model 3 -keymap pc -port tn3270 localhost $ x3270 -model 3 -keymap pc -port tn3270 localhostt91fRemote resources # cd /usr/lib/X11/app-defaults # cp X3270 X3270old# vi System B Disk cachesWrites Cache Hits FSI Channel Adapters Tuning cachesizeScsi adapter for the ThinkPad Backup and restore considerationsDisk fragmentation $ tar -cvzf /holding/OS39RA.tarz /s390/OS39RA Using tar to back up S/390 volumes$ cd /usr/flexes/rundir $ sh buOS39RAc Using tar and ftpCD-RW drive 16 S/390 identificationRAS discussion Display PSW and registersLinux windows Verify ckd diskThinkPad power control Installing FLEX-ES upgradesCommon commands Useful Linux commandsText editors Multiple consoles, sessions, screens62 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 Basic definitions for a single HDD Appendix A. FLEX-ES definition listingsShell script for a single HDD Definitions for two HDDs Shell script for two HDDs System definitions Appendix B. FLEX-ES parametersCpu0 Cpu1 Cpu2 Emulated control unit types Resource definitionsTypical resource definitions Emulated device typesCKD disk resources Terminal resources LAN resources Tape resourcesCloned devices Common rules Resadm commandCLI commands 710 Altcons Flexes mount A90 S390/WORK01560 Home/tape3 84 S/390 PID ThinkPad Enabled for S/390 Special notices 86 S/390 PID ThinkPad Enabled for S/390 Other resources How to get IBM RedbooksIBM Redbooks Referenced Web sitesIBM 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 System setup AD CD-ROM use System operation ThinkPad Enabled for S/390
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