122 IBM System Storage N series Hardware Guide
8.7.3 MetroCluster interconnect failure
In this scenario, the fabric switch interconnects failed, as shown in Figure 8-16. Although this
is not a critical failure, it must be resolved promptly before a more critical failure occurs.
Figure 8-16 Interconnect failure
During this period, data access is uninterrupted to all hosts. No automated controller takeover
occurs. Both controller heads continue to serve its LUNs and volumes. However, mirroring
and failover are disabled, which reduces data protection. When the interconnect failure is
resolved, mirrors are resynced.
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