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88 z/VM and Linux on IBM System z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0
This shows the controller is named DTCVSW1.
3. 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 540 TCP/IP Server Name: DTCVSW1
IBM 2084; z/VM Version 5 Release 4.0, service level 0903 (64-bit), VM TCP/IP
Lev
el 540; RSU 0903 running TCPIP MODULE E2 dated 12/17/09 at 10:53
TCP/IP Module Load Address: 00C21000
4. This shows information about the TCPIP MODULE. Use the TCPSLVL command and the
complete file specification (TCPIP MODULE E in this example) to get more information. Of
particular interest is the latest APAR applied to TCTOOSD:
==> tcpslvl tcpip module e
DTCLVL3306I SLVL data obtained; file TCPIP SLVLDATA A created
==> x TCPIP SLVLDATA
SLVL TCPIP PK67610
...
SLVL TCTOOSD PK98608
...
5.4 Applying a PTF
You may determine that you need to apply a specific fix or PTF to your system. For example,
an Authorized Program Analysis Report (APAR), VM64670, was opened when Linux guests
were hanging intermittently. The summary of the APAR is as follows:
PROBLEM SUMMARY: LINUX USER HUNG BECAUSE SVPBK LOCK HELD
USERS AFFECTED: All users of z/VM running Linux guests.
PROBLEM DESCRIPTION: Linux guests may become hung due to a problem in managing a
lock word. This problem is timing-related and may occur intermittently.
PROBLEM CONCLUSION: Lock word processing in HCPWED is updated to properly handle
all possible states of the lock.
The APAR was assigned the following Programming Temporary Fix (PTF) numbers for each
of the following z/VM releases:
z/VM V5.3 UM32809
z/VM V5.4 UM32810
z/VM V6.1 UM32811
So for z/VM V6.1, you want to apply PTF UM32811. The next section shows how to perform
that task.
- 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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