The direct SC8000 to SC8000 cable is just one of many hearbeat connection points between the two controllers. It is used for the initial joining of the two controllers but is not one of the high priority methods of communication between the controllers. You still have FC (if used) and also the SAS backend as other options for IPC communications between the two controllers. If the heartbeat cable is lost it will not cause a complete isolation of the two controllers from one another.
BVienneau
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Posted November 12th, 2013 09:00
The direct SC8000 to SC8000 cable is just one of many hearbeat connection points between the two controllers. It is used for the initial joining of the two controllers but is not one of the high priority methods of communication between the controllers. You still have FC (if used) and also the SAS backend as other options for IPC communications between the two controllers. If the heartbeat cable is lost it will not cause a complete isolation of the two controllers from one another.