What kind of software is "HA Software" . Do you mean High-availability cluster? If so, Sitefinity does not have a specific requirement for this, since High-availability cluster works on server and notwork level.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items