Install Guide
GUID-2E7ACC0A-9A35-4ABC-A35B-DBA0AB8388F7
5
Conguring High Availability Database Clustering
for WDM
High-availability clusters (also known as HA clusters or failover clusters) are groups of computers that support server applications
that can be reliably utilized with a minimum down-time. They operate by harnessing redundant computers in groups or clusters that
provide continued service when system components fail.
If a server running a particular application crashes, then without clustering, the application is unavailable until the crashed server is
xed. HA clustering remedies this situation by detecting hardware/software faults, and immediately restarting the application on
another system without requiring administrative intervention. This process is termed failover.
HA clusters usually use a heartbeat private network connection which is used to monitor the health and status of each node in the
cluster.
The most common size for a HA cluster is a two-node cluster.
Figure 36. WDM High Availability Database Clustering
This section provides the steps to congure high-availability (HA) database clustering for Dell Wyse Device Manager (WDM) version
5.0 and above.
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