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2 understanding unplanned failover – Avago Technologies Syncro CS 9271-8i User Manual

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LSI Corporation

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Syncro CS 9271-8i Solution User Guide
October 2013

Chapter 4: System Administration

Understanding Failover Operations

Figure 45 Migrate Resource Window

4.2.2

Understanding Unplanned Failover

An unplanned failover might occur if the controller in one of the server nodes fails, or if the cable from one controller
node to the JBOD enclosure is accidentally disconnected. The Syncro CS 9271-8i solution is designed to automatically
switch to the other controller node when such an event occurs, without any disruption of access to the data on the
drive groups.

NOTE

When the failed controller node returns, the management and I/O
paths of the pre-failover configurations are automatically restored.