When the disconnection process is complete, the [Detach Cable] screen appears.
11 Disconnect the cables from I/O module line 1.
Remove the cable that connects the DI (OUT) port of CM#1 in the controller enclosure and the DI (IN) port
of IOM#1 in the drive enclosure, which is nearest to the drive enclosure that is to be added.
The following figure shows how a mini SAS HD cable between enclosures (CE and DE) is disconnected
when drive enclosure 2 is added.
The FAULT LED for the DI (IN) port from which the cable is to be disconnected and the LINK/FAULT LED for
the DI (OUT) port in the controller enclosure turn on.
4. Component Expansion/Function Enhancement
Installing Additional Drive Enclosures
44 Operation Guide (Basic)