Active and standby designations on 7210 SAS-Sx/S 1/10GE in standalone-VC mode

On the 7210 SAS-Sx/S 1/10GE configured in the standalone-VC mode, the user must designate and configure two nodes as CPM-IMM nodes. During boot up, one of the configured nodes assumes the active CPM role and the other assumes the standby CPM role. Typically, the configured CPMA-IMM node is favored to be the active CPM and the CPMB-IMM is favored to be the standby CPM. If only one CPM-IMM node is configured, it becomes the active CPM.

To visually determine the active and standby designations, the Master LED on the faceplate is lit (steady) to indicate the active designation. The Master LED on the standby CPM faceplate blinks to indicate the standby designation.

Example

The following output sample shows two nodes configured as CPM-IMM nodes with one becoming the active node and the other becoming the standby node.

*A:CPM-A# show card
===============================================================================
Card Summary
===============================================================================
Slot      Provisioned Type                         Admin Operational   Comments
              Equipped Type (if different)         State State
-------------------------------------------------------------------------------
1         sas-s-48sfp-4sfpp                        up    up            CPMA-IMM
2         sas-s-24sfp-4sfpp                        up    up            CPMB-IMM
3         sas-s-24sfp-4sfpp                        up    up            IMM-ONLY
A         sfm-sas                                  up    up/active
B         sfm-sas                                  up    up/standby
===============================================================================
*A:CPM-A#

When CPM B boots, it waits 60 seconds to detect an active CPM A. If CPM A does not respond after 60 seconds, CPM B assumes the role of the active node.