IBM s/390 manual Using tar and ftp, $ cd /usr/flexes/rundir $ sh buOS39RAc

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5.We intended to use the cmp command to verify that the restored file matched the original file, but it appears that this command does not work with files larger than 2 GB.

The complete operation took place on a single HDD in the ThinkPad. Linux disk buffering was very effective and HDD seeking was not excessive during these operations, judging both from the sound of the HDD and observed performance.

The disadvantage of this backup method is that single S/390 data sets cannot be restored from the backup file. (Of course, you could restore the file containing the S/390 volume, rename the file, add it to your FLEX-ES definitions, IPL, clip the S/390 volume to a different volser, vary it online, and copy a single file from it. This is an extended process, but it does work for simple data sets. Attempting to deal with VSAM data sets, for example, could be more complex.)

We did not try this, but we could have first backed up the S/390 volume (with ADRDSSU) to create a FakeTape file and then processed this file with tar. This would require more processing and more Linux disk space, but this process could be used to restore individual OS/390 data sets.

5.15.2 Using tar and ftp

One way to back up S/390 volumes on a ThinkPad/EFS system is to ftp the Linux file containing the volume to another system. Using a 100 Mpbs LAN connection, especially on a private or local LAN, performance can be quite good. These files are large, by any standard, and ftp’ing compressed files probably makes more sense. We created the following shell scripts:

Shell script /usr/flexes/rundir/buOS39RAc

tar -cvzf /holding/OS39RA.tarz /s390/OS39RA ftp -niv 0<buOS39RAp

Shell script /usr/flexes/rundir/buOS39RAp

open 9.12.17.220 user ogden xxxxxx bin

put /holding/OS39RA.tarz /s390/TP/OS39RA.tarz

We then executed these functions:

$cd /usr/flexes/rundir

$sh buOS39RAc

tar: Removing ‘/’ from member names s390/OS39RA

Connected to 9.12.17.220

220 nfefs1 FTP server (Version wu-2.6.1-16) ready 530 Please login with USER and PASS.

530 Please login with USER and PASS.

KERBEROS_V4 rejected as an authentication type 331 Password required for ogden.

230 User ogden logged in/

200 Type set to I.

local: /holding/OS39RA.tarz remote: /s390/TP/OS39RA.tarz 226 Transfer complete

468091178 bytes sent in 57 seconds (8e+03 Kbytes/s)

221-You have transferred 468091178 bytes in 1 files.

221-Total traffic for this session was 468091705 bytes in 1 transfers. 221 Thank you for using the FTP server on nfefs1

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 ThinkPad Linux installationPartition Manually Partition Mount Point Device Requested Actual Type Purpose12.17.210 Device Partition Type Default Boot255.255.255.0 12.17.150Gnome Monitor Setup IBM 9513 T55A TFT No clock chip 24 bit Installation notesSelect Start X automatically # df -h# 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 Next steps OS/390 AD systemsAD systems # mkdir /s391Basic CD-ROM formats 2 OS/390 on CD-ROMFLEX-ES formats 3 OS/390 device configurationUnzipping and installing Awsckd CD-ROM files Installation tasksAn unzip program Mount /dev/cdrom /mnt/cdromFile ownership Minor problemsFiles unzip in wrong order Volume in two separate zip filesFLEX-ES Operation Comments FLEX-ES system and resource definitions$ cd /usr/flexes/rundir Building a shell script# resadm -s R10A.rescf $ resadm -r$ sh shos Flexes ipl a80 0a82cs =stor IPL OS/390Terminal Solicitor User terminal connection Operation and use11.42.47 A80,8Iodf requirements Linux TN3270System performance monitors Rmf5 TCP/IP for OS/390 # resadm -T Shutting down# resadm -k # exit36 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 $ x3270 -model 3 -keymap pc -port tn3270 localhost X3270 client$ x3270 -model 3 -keymap pc -port tn3270 localhostt91f Function Keys Used# 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 IBM Redbooks How to get 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 System setup AD CD-ROM use System operation ThinkPad Enabled for S/390
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