IBM s/390 manual Remote resources, # cd /usr/lib/X11/app-defaults # cp X3270 X3270old, # vi

Page 59

This key mapping may be disconcerting to experienced 3270 users (especially ISPF users) because it uses the large Enter key (on the PC keyboard) as the 3270 Enter key. On a “real” 3270, the large key in this position performs a New Line function, and a smaller key (where the Right Cntrl key is positioned on a PC keyboard) performs the 3270 Enter function. You can correct this situation by the following:

# cd /usr/lib/X11/app-defaults

# cp X3270 X3270old

 

(keep copy of original, just in case)

# vi X3270

 

 

.....

 

 

X3270.keymap.pc: \

 

(scroll until you find this line)

Meta<Key>d:

Redraw()\n\

 

Alt<Key>d:

Redraw()\n\

 

Meta<Key>Return:

Newline()\n\

 

Alt<Key>Return:

Newline()\n\

 

<Key>Return:

Newline()\n\

(change this line, as shown)

!Shift<Key>Tab:

BackTab()\n\

 

.....

 

 

.....

 

(near end of ‘X3270.keymap.pc’ section)

Alt<Key>Home:

Clear()\n\

 

<Key>KP_Enter:

Enter()\n\

(insert this line)

<Key>Control_R:

Enter()\n\

(insert this line)

<Key>Control_L:

Reset()\n\

(insert this line)

:<Key>:

Default()

 

X3270.keymap.pc84: \

 

 

.....

 

 

You will need to use :w! to save the file in vi, because it is a read-only file. Make these changes carefully; there is one altered line and three new lines. Be careful not to make any other changes unless you understand the format and functions of this file.

We changed the large Enter key on the PC keyboard to perform the 3270 New Line function, the Left Cntrl key to perform the 3270 Reset function, and the Right Cntrl key to perform the 3270 Enter function. This is the most familiar keyboard arrangement for most 3270 users.

5.9 Remote resources

FLEX-ES can use TCP/IP links to other instances of FLEX-ES on remote Servers. You could, for example, run only the FLEX-ES resource manager on a remote Server that has a large disk configuration. With the proper system definition (locally) and resources definitions (locally and remotely), a FLEX-ES instance could access the remote disks (as emulated S/390 devices) as readily as local disks. When used with a fast LAN, the performance is not much slower than local device access. Usage is not limited to emulated disks; for example, a SCSI tape drive on a remote system could be used, or emulated channel-to-channel connections. A FLEX-ES license for each system is required.

Setup for this type of operation can be recognized by the keyword network in channel definitions and in cu definitions. FLEX-ES automatically uses TCP/IP port 555 for communication between multiple resource managers.

We did not use remote resources for our redbook project. Our project concentrated on setting up and operating a basic ThinkPad/EFS system, and we did not need remote resources for this. However, FLEX-ES remote resources is potentially a very powerful and useful function in appropriate situations.

Chapter 5. Additional Topics

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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# kill -s USR1 pidnumber PID number for xinetd Etc/xinetd.d # vi telnet# ps -ef grep 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 =stor IPL OS/390Terminal Solicitor 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 Server memory Operating Systems Messages consoleSecurity Vmstat command CPU Importance of Linux swapping# cat /proc/partitions Using a second Linux hard diskUltrabay Second disk planning Device Volser Addr Use Disk layout AD systemPartition Mount Size 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 localhostt91f# vi # cd /usr/lib/X11/app-defaults # cp X3270 X3270oldRemote resources System B Disk cachesWrites Cache Hits FSI Channel Adapters Tuning cachesizeDisk fragmentation Backup and restore considerationsScsi adapter for the ThinkPad $ 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 560 Home/tape3 Flexes mount A90 S390/WORK01710 Altcons 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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