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44 z/VM and Linux on IBM System z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0
Search for the XEDIT User’s Guide and Command Reference. Also, there is an old manual
available at:
http://ukcc.uky.edu/ukccinfo/391/xeditref.html
One default setting that can be dangerous, especially if you use F12 to retrieve commands, is
that PF12 is set to the FILE subcommand. Sometimes you may not want to save your
changes with the stroke of one key. It is recommended that you set PF12 to the ?
subcommand, which has the effect of a retrieve key:
==> copy profile xedit a profile xediorig a (oldd
==> x profile xedit a
Before:
SET PF12 FILE
After:
SET PF12 ?
Save your changes with the FILE subcommand.
4.4 Customizing the SYSTEM CONFIG file
The first configuration file read when z/VM performs an IPL is the SYSTEM CONFIG file. The
following changes are recommended:
Change the system name.
Increase retrieve key capacity.
Allow virtual disks (VDISKs) to be created.
Turn off the Disconnect_Timeout (this will prevent idle disconnected users from being
forced off the system).
Define a virtual switch (VSWITCH) that will be used for Linux networking.
To make these changes, perform the following steps:
1. To edit the SYSTEM CONFIG file, the MAINT CF1 minidisk must be released as a CP disk
using the CPRELASE command. The CP disks are queried using the QUERY CPDISK
command. Note that the MAINT CF1 disk is accessed as CP disk A before it is released,
but not after.
==> q cpdisk
Label Userid Vdev Mode Stat Vol-ID Rdev Type StartLoc EndLoc
MNTCF1 MAINT 0CF1 A R/O 610RES 6280 CKD 39 158
MNTCF2 MAINT 0CF2 B R/O 610RES 6280 CKD 159 278
MNTCF3 MAINT 0CF3 C R/O 610RES 6280 CKD 279 398
==> cprel a
CPRELEASE request for disk A scheduled.
HCPZAC6730I CPRELEASE request for disk A completed.
==> q cpdisk
Label Userid Vdev Mode Stat Vol-ID Rdev Type StartLoc EndLoc
MNTCF2 MAINT 0CF2 B R/O 610RES 6280 CKD 159 278
MNTCF3 MAINT 0CF3 C R/O 610RES 6280 CKD 279 398
- Enterprise Linux 6.0 1
- February 2011 3
- First Edition (February 2011) 4
- Contents 5
- Contents v 7
- Contents vii 9
- Trademarks 12
- Chapters and appendixes 13
- Conventions 14
- The team who wrote this book 15
- Special thanks 15
- Comments welcome 16
- Preface xv 17
- Summary of changes 19
- 1.1 What is virtualization 23
- 1.4 Infrastructure design 24
- Planning 27
- 2.1 Bill of materials 28
- 2.2 z/VM conventions 29
- Real address 30
- LPAR identifier 30
- 2.3 Disk planning 31
- 2.4 Memory planning 32
- 2.5 Password planning 32
- 2.6 Planning worksheets 33
- 2.7 Blank worksheets 36
- 2.7.2 z/VM DASD worksheet 37
- Configuring a desktop machine 39
- Figure 3-2 Setting logging 41
- Saving sessions 43
- 3.2 Setting up a VNC client 44
- 3.3 3270 emulators 45
- Figure 4-3 Recovery menu 51
- Running INSTDVD 57
- Figure 4-11 Load window 58
- 4.2 Configuring TCP/IP 61
- 4.6 Adding paging volumes 70
- Using the CPFORMAT EXEC 72
- 4.6.4 Testing the changes 76
- 4.8.2 Testing the changes 83
- 4.9.1 VM security products 84
- clipping the volumes 90
- Servicing z/VM 93
- Chapter 5. Servicing z/VM 75 95
- Chapter 5. Servicing z/VM 77 97
- Chapter 5. Servicing z/VM 79 99
- S9338801 in this example): 100
- Chapter 5. Servicing z/VM 81 101
- Chapter 5. Servicing z/VM 85 105
- Chapter 5. Servicing z/VM 87 107
- 5.4 Applying a PTF 108
- Chapter 5. Servicing z/VM 89 109
- Chapter 5. Servicing z/VM 91 111
- Chapter 5. Servicing z/VM 93 113
- Chapter 5. Servicing z/VM 95 115
- Configuring an NFS/FTP server 117
- 6.4 Enabling the NFS server 120
- 7.1 Installing the cloner 126
- Figure 7-2 NFS setup panel 135
- 7.2 Configuring the cloner 147
- 7.2.8 Configuring SSH keys 153
- 7.2.12 Rebooting the system 155
- 7.2.13 Verifying the changes 155
- Figure 8-4 166
- 8.2.7 Configuring SSH keys 172
- 8.2.10 Rebooting the system 173
- 8.2.11 Verifying the changes 173
- Detaching the source disks 180
- 9.4.3 Using the clone script 185
- 9.6 Reviewing system status 193
- 11.1.2 Testing Apache 202
- 11.1.3 Turning on a firewall 203
- 11.1.6 Apache resources 205
- 11.2.3 Adding an LDAP user 207
- 11.3.4 Adding a Samba user 212
- 11.3.6 Testing your changes 213
- 11.3.7 Configuring printing 215
- 11.4.1 Additional resources 217
- Servicing Linux with Red Hat 219
- Miscellaneous tasks 223
- 13.1 Adding DASD 224
- 13.2 Adding a logical volume 226
- Volume Group - homevg 227
- 13.4 Adding SCSI/FCP disks 233
- 4014402600000000. Change the 235
- 13.5 Rescuing a Linux system 239
- 13.9 The X Window System 251
- Using PuTTY 254
- Using embedded SSH 256
- INIDICATE LOAD 260
- INDICATE QUEUES EXP 261
- Getting help 262
- Determining who is logged on 262
- Determining storage or memory 263
- Determining processors 263
- 14.2.3 Configuring PERFSVM 266
- Using a web browser interface 270
- Using a 3270 interface 272
- 14.3 Monitoring Linux 274
- References 277
- Cheat sheets 278
- A vi cheat sheet 279
- Additional material 281
- Related publications 283
- Online resources 284
- Help from IBM 285
- Hat Enterprise Linux 6.0 293
- Back cover 296
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