Installation guide

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23. Migrating to KVM from other hypervisors using virt-v2v 171
23.1. Preparing to convert a virtualized guest ........................................................... 171
23.2. Converting virtualized guests ........................................................................... 175
23.2.1. virt-v2v ................................................................................................ 175
23.2.2. Converting a local Xen virtualized guest ................................................ 177
23.2.3. Converting a remote Xen virtualized guest ............................................. 177
23.2.4. Converting a VMware ESX virtualized guest .......................................... 177
23.2.5. Converting a virtualized guest running Windows ..................................... 178
23.3. Running converted virtualized guests ............................................................... 179
23.4. Configuration changes .................................................................................... 179
23.4.1. Configuration changes for Linux virtualized guests .................................. 179
23.4.2. Configuration changes for Windows virtualized guests ............................ 180
24. Miscellaneous administration tasks 183
24.1. Automatically starting guests ........................................................................... 183
24.2. Using qemu-img ............................................................................................. 183
24.3. Verifying virtualization extensions ..................................................................... 184
24.4. Setting KVM processor affinities ...................................................................... 185
24.5. Generating a new unique MAC address ........................................................... 189
24.6. Improving guest response time ........................................................................ 190
24.7. Very Secure ftpd ......................................................................................... 191
24.8. Disable SMART disk monitoring for guests ....................................................... 192
24.9. Configuring a VNC Server ............................................................................... 192
24.10. Gracefully shutting down guests .................................................................... 192
24.11. Virtual machine timer management with libvirt ................................................. 193
V. Virtualization storage topics 197
25. Storage concepts 199
25.1. Storage pools ................................................................................................. 199
25.2. Volumes ........................................................................................................ 200
26. Storage pools 203
26.1. Creating storage pools ................................................................................... 203
26.1.1. Dedicated storage device-based storage pools ...................................... 203
26.1.2. Partition-based storage pools ................................................................ 205
26.1.3. Directory-based storage pools ............................................................... 211
26.1.4. LVM-based storage pools ..................................................................... 217
26.1.5. iSCSI-based storage pools ................................................................... 223
26.1.6. NFS-based storage pools ..................................................................... 232
27. Volumes 237
27.1. Creating volumes ............................................................................................ 237
27.2. Cloning volumes ............................................................................................. 237
27.3. Adding storage devices to guests .................................................................... 238
27.3.1. Adding file based storage to a guest ..................................................... 238
27.3.2. Adding hard drives and other block devices to a guest ............................ 240
27.4. Deleting and removing volumes ....................................................................... 241
28. Miscellaneous storage topics 243
28.1. Creating a virtualized floppy disk controller ....................................................... 243
28.2. Configuring persistent storage in Red Hat Enterprise Linux 6 ............................. 244
28.3. Accessing data from a guest disk image .......................................................... 247
29. N_Port ID Virtualization (NPIV) 251
29.1. Enabling NPIV on the switch ........................................................................... 251