Configuring Virtual Machines

Contents

6.1. Modifying existing Virtual Machine Configurations
6.2. Virtual Networking
6.3. Block Devices
6.4. Clock Settings

Modifying existing Virtual Machine Configurations

Virtual Networking

Block Devices

Clock Settings

* Where available (not in SLES9 SP4), kvm-clock is to be used. 
* When using kvm-clock, running NTP inside the guest is not recommended
* kvm-clock -> On SLE 11 and SLE 10 SP3 verify via “dmesg | grep kvm-clock”
* You can verify kvm-clock is enable by checking /sys/devices/system/clocksource/clocksource0/current_clocksource
  Output should say "kvm-clock" 
* Disabling kvm-clock: add "no-kvmclock" as kernel parameter to guest

On SLES 9 SP4 specify the following boot parameters in order to have proper
time keeping:
  for 32 bit kernel: clock=pmtmr
  for 64 bit kernel: ignore_lost_ticks