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160 z/VM and Linux on IBM System z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0
Detaching the source disks
Now that you no longer need the source disks linked, detach them:
# vmcp det 1100-1101
1100-1101 DETACHED
Activating the target disk with the root file system
Activate the minidisk at real device address 2100, which has the root file system in the first
partition:
# chccwdev -e 2100
Setting device 0.0.2100 online
Done
Attention: If you do not have FLASHCOPY support, you can use the Linux dasdfmt and
dd commands. You must first enable the 1100-1101 and 2100-2101 disks with the
chccwdev -e command, then determine the newly created device nodes with the lsdasd
command:
# chccwdev -e 1100-1101,2100-2101
Setting device 0.0.1100 online
Done
...
# lsdasd
...
0.0.1100 active dasdf 94:20 ECKD 4096 2347MB 600840
0.0.1101 active dasdg 94:24 ECKD 4096 2347MB 600840
0.0.2100 active dasdh 94:28 ECKD 4096 2347MB 600840
0.0.2101 active dasdi 94:32 ECKD 4096 2347MB 600840
In this example, the source minidisks (1100-1101) are named /dev/dasdf and
/dev/dasdg, while the target minidisks (2100-2101) are named /dev/dasdh and
/dev/dasdi. Format the target devices with the dasdfmt command using a 4096 byte
(4 KB) block size:
# dasdfmt -b 4096 -y -f /dev/dasdh
Finished formatting the device.
Rereading the partition table... ok
# dasdfmt -b 4096 -y -f /dev/dasdi
...
Now that the devices have been formatted, you can copy the volumes of the golden image
with the dd command, again using a block size of 4 KB (4096) bytes:
# dd if=/dev/dasdf of=/dev/dasdh bs=4096
...
# dd if=/dev/dasdg of=/dev/dasdi bs=4096
...
Bring the devices offline so the new file systems will be recognized when brought back
online:
# chccwdev -d 1100-1101,2100-2101
...
- 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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