An administrator is configuring a stretched HA configuration and has HA errors on all of the
hosts at the remote site. What can be done to ensure virtual machines at one site can be
restarted at the remote site?
A.
Create separate HA clusters at each site and enable Stretch Cluster on each
B.
Ensure the latency between the sites is less than 5 milliseconds
C.
Ensure any firewalls between the hosts are allowing port 8182
D.
Ensure each site has no more than 4 primary hosts
A is not possible a stretched cluster is not operating with 2 clusters
B a stretched cluster over 2 sites could end up in a network/storage partition if intersite links go down. To me this is the correct answer.
http://www.yellow-bricks.com/2011/10/07/vsphere-metro-storage-cluster-solutions-what-is-supported-and-what-not/
The latenc however applies to the Storage IP/FC network.
C stretched clusters ought to have a streched VLAN, do they have a firewall inbetween their sites and being separated vi a fw ? When do we need to assume/not assume anything in this kind of questions ?
D is totally irrelevant.
For me B is the most relevant reply.
Port 8182 is the port in use between master-slaves though
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1012382