Admission control vsphere 5

Will someone tell me about the changes for HA in vSphere 5.0 with regards to admission control policies? List all the change?

[Kiran Chandar]

As you want to know about changes for HA in vSphere 5.0 with regards to admission control policies. I would like to provide list all the changes; the list of changes is following.

The first change in vSphere 5.0 is:
Host failures cluster tolerates

Still uses the slot algorithm. Major change here is that you can have a value larger than 4 hosts. The 4 host limit was imposed by the Primary/Secondary node concept.
Another change is the default slotsize for CPU. The default slotsize used to be 256MHz. This has been decreased to 32MHz.

The second change in vSphere 5.0 is:
Percentage as cluster resources reserved
Now you can set CPU to 30% and Memory to 25%. The algorithm hasn’t changed.

The third change in vSphere 5.0 is:
Specify Failover host
Allows you to select multiple hosts instead of just one.