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When deploying BIG-IP® Virtual Edition (VE) on a XenServer host, use these best practices.
|Redundant system configuration||Run the two units of an active-standby pair on separate physical hosts by manually creating a virtual machine peer on each host.|
|Using XenMotion on live BIG-IP VE virtual machines||Use XenMotion for live migration of BIG-IP® VE virtual machines on idle virtual machines only. Live migration of BIG-IP VE while the virtual machine is processing traffic could produce unexpected results.|
|Resource reservations||BIG-IP VE is deployed with the hypervisor's default resource settings. The CPU reservation can be set only to the highest setting of the VCPU priority of the virtual machine.|
|Time synchronization||Configure all BIG-IP VE systems to use an external time synchronization source. You can do this by configuring NTP within BIG-IP VE.|
|Disable hyper-threading on older processors||F5 Networks recommends turning off Hyper-Threading Technology when
using host machines with Intel
Pentium 4 era processors. Doing so will prevent
possible timing issues with BIG-IP VE.
Important: Production licenses are not supported on Pentium 4 processors.