Red Hat LINUX VIRTUAL SERVER 4.6 - ADMINISTRATION Manuale di Installazione Pagina 173
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Chapter 8. Installing and configuring the golden image 153
/dev/disk/by-path/ccw-0.0.0100-part2 swap swap defaults
0 0
...
After a reboot, the minidisk swap space should come back with the lowest priority.
8.2.9 Other configuration changes
You might consider other configuration changes. Of course, you can take an iterative
approach: Start with this set of changes, clone some Linux images and test, then bring the
golden image back up, make more changes, and re-clone.
Whether you are on the first pass of configuration or not, refer to the following sections to
consider other changes for performance and availability related issues:
12.1, “Registering your system with RHN” on page 200
13.6, “Setting up Linux Memory Hotplugging” on page 222
13.8, “Hardware cryptographic support for OpenSSH” on page 227
8.2.10 Rebooting the system
Run the reboot command to test your changes:
# reboot
Broadcast message from root (pts/0) (Sun Nov 19 08:57:32 2006):
The system is going down for reboot NOW!
8.2.11 Verifying the changes
You are now done customizing the master Linux image. When the system comes back
online, you should verify the changes that you made:
1. SSH back into the cloner and check a few settings.
2. Use the df command to display your file systems. Your output may differ:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/dasda1 504M 147M 332M 31% /
tmpfs 498M 0 498M 0% /dev/shm
/dev/mapper/system_vg-opt_lv
372M 17M 337M 5% /opt
/dev/mapper/system_vg-tmp_lv
372M 17M 337M 5% /tmp
/dev/mapper/system_vg-usr_lv
1.5G 817M 619M 57% /usr
/dev/mapper/system_vg-var_lv
372M 85M 269M 24% /var
3. Confirm that both of your swap spaces are operational:
# swapon -s
Filename Type Size Used
Priority
/dev/dasdb1 partition 262132 0 -1
/dev/dasdc1 partition 524276 0 -2
/dev/dasda2 partition 524296 0 -3
- 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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