Database Reference
In-Depth Information
performance SQL server databases that wish to make use of AlwaysOn Failover Cluster
Instances.
Figure 6.37
shows the enhancements available when using AlwaysOn Failover Cluster
Instances on vSphere 5.5.
Figure 6.37
vSphere 5.5 failover clustering enhancements.
The new failover clustering support in vSphere 5.5 means you can use the Round Robin
multipathing policy to load-balance multiple active storage paths, Windows Server
2012 clusters are fully supported (up to five nodes when using RDMs), and FCoE and
iSCSI protocols in addition to FC are supported for the RDMs.
Note
For full details of VMware's Windows Failover Clustering support, refer
to VMware KB 1037959. When using large numbers of RDMs for failover
clusters, you may need to perennially reserve them to ensure fast host
storage rescans and boot times; refer to VMware KB 1016106. For further
details on vSphere 5.5 clustering enhancements, see VMware KB 2052238.
RAID Penalties and Economics
