Dell Acceleration Appliances for Databases - Manual (Page 35)

HA (High Availability) and Configuring Clusters
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If you are not planning to implement the high-availability feature of the ION Accelerator
software, skip ahead to the next section.
ABOUT ION ACCELERATOR HIGH AVAILABILITY
ION Accelerator enables a powerful and effective High Availability (HA) environment for your shared
storage. HA clustering provides an important option for customers who prefer array-based HA over
application-based mirroring. This can be especially useful if your application does not provide logical
volume management, such as with all VMware environments and most implementations of
Microsoft Clustering.
Clustering relies on point-to-point connections – HA networking across geographically
distributed sites is not supported.
The diagram on the left shows a simple HA clustering setup, using a 40Gb Ethernet connection
between appliances. The diagram on the right shows an ION Accelerator mirroring configuration
without clustering, an alternative approach.
Apps
Primary
Data Center
Mirror Mirror
Application-Based Mirroring
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