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82 The Virtualization Cookbook for Red Hat Enterprise Linux 5.2
To invoke the new CP load module, use the SHUTDOWN REIPL command. When your system
comes back up, it should be at the new CP service level; in this example, 0702:
==> shutdown reipl iplparms cons=sysc
...
==> q cplevel
z/VM Version 5 Release 3.0, service level 0702 (64-bit)
Generated at 05/29/07 18:39:52 EST
IPL at 11/12/07 14:53:28 EST
This shows that the new CP load module is now being used.
5.3 Determining the z/VM service level
Often you will want to be able to query more than just the service level. The following steps
were taken from the links CP Maintenance Levels and Virtual Switch TCP/IP Maintenance
Levels starting at the Web site:
http://www.vm.ibm.com/virtualnetwork/
Logon as TCPMAINT. Use the QUERY VMLAN command to determine the latest APAR applied:
==> cp query vmlan
VMLAN maintenance level:
Latest Service: VM63895
VMLAN MAC address assignment:
MACADDR Prefix: 020001
MACIDRANGE SYSTEM: 000001-FFFFFF
USER: 000000-000000
VMLAN default accounting status:
SYSTEM Accounting: OFF USER Accounting: OFF
VMLAN general activity:
PERSISTENT Limit: INFINITE Current: 1
TRANSIENT Limit: INFINITE Current: 0
This shows that the latest APAR applied is VM63895.
The maintenance level of the TCP/IP stack is important to virtual networking. To determine
this, first get the active VSWITCH controller:
==> q vswitch
VSWITCH SYSTEM VSW1 Type: VSWITCH Connected: 8 Maxconn: INFINITE
PERSISTENT RESTRICTED NONROUTER Accounting: OFF
VLAN Unaware
State: Ready
IPTimeout: 5 QueueStorage: 8
Portname: UNASSIGNED RDEV: 3004 Controller: DTCVSW1 VDEV: 3004
Portname: UNASSIGNED RDEV: 3008 Controller: DTCVSW2 VDEV: 3008 BACKUP
This shows the controller is named DTCVSW1. Then use the NETSTAT command with the
controller name to determine the maintenance of the TCPIP MODULE:
==> netstat tcp <dtcvsw1> level
VM TCP/IP Netstat Level 530
IBM 2094; z/VM Version 5 Release 3.0, service level 0701 (64-bit), VM TCP/IP Lev
el 530; RSU 0701 running TCPIP MODULE E2 dated 11/10/07 at 11:34
TCP/IP Module Load Address: 00C44000
- 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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