IBM s/390 manual Linux TN3270, Iodf requirements, System performance monitors, Rmf

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4.2.2 Linux TN3270

A TN3270 emulator is included with Linux. In our opinion, it is not quite the same quality as the x3270 emulator distributed with FLEX-ES or the PCOM emulator we used on OS/2 and Windows machines.

4.2.3 IODF requirements

OS/390 requires an IODF data set that defines the I/O configuration seen by the software. This normally matches the IOCDS defined for the S/390 I/O hardware configuration. The ThinkPad/EFS platform does not have an IOCDS. All resources are defined in FLEX-ES system and resource files, compiled with the FLEX-ES resource compiler cfcomp, and then activated by the FLEX-ES resource manager resadm command.

An IODF is still required within an OS/390 system, but the HCD input to generate it does not need to define control unit details. That is, a simple device definition (device number, type, optional features) is all that is required. OS/390 dynamic I/O redefinition capability is not available.

In response to a d ios,config(all) command, we received the following:

- 11.38.06

d ios,config(all)

11.38.06IOS506I 11.38.06 I/O CONFIG DATA 656 ACTIVE IODF DATA SET = SYS1.IODF01

CONFIGURATION ID = CBIPO

EDT ID = 00

HARDWARE

SYSTEM

AREA DATA COULD NOT BE OBTAINED

ELIGIBLE

DEVICE

TABLE LATCH

COUNTS

 

0 OUTSTANDING BINDS

ON PRIMARY EDT

You can, however, perform software dynamic configuration changes via OS/390 Hardware Configuration Definition (HCD) dialogs or the OS/390 ACTIVATE command, provided the affected devices are included in the FLEX-ES definition files.

4.2.4 System performance monitors

Because I/O sub-channel blocks are not maintained by FLEX-ES software emulation, the OS/390 Resource Measurement Facility (RMF) is not fully supported. You can run RMF, or other system performance monitors, but some of the reporting (especially when it comes to I/O activity) will not be complete.

When we started RMF, it reported the absence of an IOCDS in this environment and automatically terminated I/O queuing activity reporting:

-

11.22.34

 

s rmf

 

- 11.22.35 STC00439

$HASP373 RMF

STARTED

 

11.22.36

STC00439

ERB100I RMF: ACTIVE

11.22.36STC00439 ERB265I RMF: IOCDS INFORMATION UNAVAILABLE TO RMF.

RESPONSE CODE 01F0

11.22.37STC00439 ERB260I ZZ : I/O QUEUING ACTIVITY RMF REPORT TERMINATED

11.22.38STC00439 ERB100I ZZ : ACTIVE

SYS1.LOGREC may not have hardware error information. Consequently, any report produced by Environmental Recording and Editing Program (EREP) will have limited value when it comes to hardware detected errors. Due to time constraints, we did not investigate this area in more detail.

Chapter 4. FLEX-ES Operation 33

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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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