StorMagic SvSAN is a virtual storage appliance (VSA) that provides a lightweight, highly available shared storage solution, with no single points of failure. It is typically deployed on to two servers and performs synchronous mirroring between the servers. Although 2-node clusters deployments are the most common use case for SvSAN, it is possible to scale-out the cluster beyond two servers, enabling the solution to be fully resilient while a server is undergoing maintenance or suffers a server failure.
This white paper outlines the use case for 3-node clusters, and details how SvSAN operates as part of such a deployment. It explains how SvSAN can continue to deliver highly available shared storage on the surviving servers in the cluster when in the following scenarios:
- Scenario 1 – Planned Maintenance
- Scenario 2 – Unplanned Failure
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