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68 The Virtualization Cookbook for Red Hat Enterprise Linux 5.2
8. Go back to the Integrated 3270 console. After a few minutes, the Standalone Program
Loader window should appear. Use the Tab key to traverse to the section IPL Parameters
and enter the value cons=sysg.
9. Press the F10 key to continue the IPL of your z/VM system. This should take 1 to 3
minutes.
10.At the Start prompt you have to specify a FORCE start, again because the spool volume
label has changed:
==> force drain
11.Do not change the time-of-day clock:
==> no
12.When the IPL completes, DISCONNECT from the OPERATOR user ID:
==> disc
13.Close the HMC windows.
14.Start a 3270 emulator session as the TCPIP service machine should be up. Logon as
MAINT.
Get a 3270 session as MAINT and verify the volume labels have changed with the QUERY
CPOWNED command:
==> q cpowned
Slot Vol-ID Rdev Type Status
1 MVD850 D850 Own Online and attached
2 MVD851 D851 Own Online and attached
3 MVD852 D852 Own Online and attached
4 MVD853 D853 Own Online and attached
5 MVD854 D854 Own Online and attached
6 MPD855 D855 Own Online and attached
...
4.12 Restoring your z/VM system from tape
It is a good idea to practice restoring a system before you need to do it under pressure in a
real production environment.
Restoring a z/VM system from tape that has the same set of volume labels as the system that
is running is problematic. If there are two z/VM systems on the same LPAR with the same
volume labels, both systems cannot be IPLed cleanly.
Important: In the event that you IPLed a system with duplicate system volumes, it is
possible that you may have destroyed your saved segments. You will know this is the
case when you cannot IPL CMS. Rather, you will have to IPL 190.
To rebuild saved segments, use the following commands (only do so if your saved
segments have been destroyed):
==> vmfsetup zvm cms
==> sampnss cms
==> ipl 190 clear parm nosprof instseg no
==> acc (noprof
==> acc 5e6 b
==> acc 51d d
==> vmfbld ppf segbld esasegs segblist ( all
- The Virtualization Cookbook 1
- Linux 5.2 3
- October 2008 3
- First Edition (October 2008) 4
- Contents 5
- Contents v 7
- Contents vii 9
- Trademarks 12
- The team that wrote this book 13
- Chapters and appendixes 15
- Conventions 17
- Comments welcome 17
- 1.1 What is virtualization 20
- 1.2 This book’s approach 21
- 1.4 Infrastructure design 22
- Planning 25
- 2.1 Bill of materials 26
- 2.2 z/VM conventions 27
- 2.3 Disk planning 28
- DASD versus SCSI/FCP 29
- 3390-3s versus 3390-9s 29
- Disk storage per Linux image 29
- 2.4 Memory planning 30
- 2.5 Password planning 30
- 2.6 Planning worksheets 31
- 2.7 Blank worksheets 34
- 2.7.2 z/VM DASD worksheet 35
- Configuring a desktop machine 37
- Figure 3-2 Setting logging 39
- Saving sessions 41
- 3.2 Setting up a VNC client 42
- 3.3 3270 emulators 43
- 4.1 Installing z/VM from DVD 46
- ==> instplan 50
- Running INSTDVD 52
- Figure 4-8 Load window 53
- ==> cold drain noautolog 54
- ==> no 54
- ==> disc 54
- 4.2 Configuring TCP/IP 56
- not specified 62
- 4.6 Adding paging volumes 65
- Using the CPFORMAT EXEC 67
- 4.6.4 Testing the changes 71
- 4.8.2 Testing the changes 78
- 4.9.1 VM security products 79
- ==> sampnss cms 86
- Servicing z/VM 89
- 5.1 Applying a PTF 90
- 6.4 Enabling the NFS server 106
- 7.2.3 Configuring VDISK swap 128
- 7.2.4 Configuring yum 128
- 7.2.5 Adding additional RPMs 129
- 7.2.10 Configuring SSH keys 134
- 4 6763) is running 135
- 8.2.4 Adding additional RPMs 145
- 8.2.8 Configuring SSH keys 145
- 8.2.9 Rebooting the system 146
- 8.2.10 Verifying the changes 146
- Detach the source disks 151
- Detach the target disks 154
- IPL the target system 154
- 9.3.2 Using the clone script 157
- FLASHCOPY 159
- Installation Server 159
- Master Image 159
- 9.5 Reviewing system status 163
- LNXMAINT 164
- Delete these 167
- Servicing Linux with Red Hat 171
- 12.1.2 Testing Apache 179
- 12.1.3 Turning on a firewall 179
- 12.1.6 Apache resources 182
- Start the LDAP service 184
- Deleting duplicate users 186
- Set a password 189
- 12.3.4 Adding a Samba user 191
- 12.3.6 Testing your changes 192
- 12.3.7 Configuring printing 193
- 12.4.1 Additional resources 194
- Linux kernel development 195
- Web development 195
- Miscellaneous recipes 197
- 13.1 Adding a logical volume 198
- Volume Group - optvg 200
- Creating a physical volume 204
- Extending the volume group 204
- /var/lib/ldap 205
- Configuring LDAP 206
- Configuring automount 207
- 13.4 Rescuing a Linux system 208
- Monitoring z/VM and Linux 211
- INIDICATE LOAD 212
- INDICATE QUEUES EXP 213
- Getting help 214
- Determining who is logged on 214
- Determining storage or memory 215
- Determining software level 215
- 14.2.3 Configuring PERFSVM 218
- Using a Web browser interface 220
- Using a 3270 interface 222
- 14.3 Monitoring Linux 223
- PURGE NSS NAME MONDCSS 228
- CP SAVESEG MONDCSS 228
- References 229
- Quick reference sheets 230
- Prefix commands 231
- :help give help 232
- Appendix B. z/VM source code 233
- The CPFORMAT EXEC 234
- The CHPW540 XEDIT macro 238
- The LABEL540 EXEC 241
- The LABEL540 XEDIT macro 243
- Linux source code 245
- Related publications 257
- Online resources 258
- How to get Redbooks 258
- Help from IBM 258
- Hat Enterprise Linux 5.2 265
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