The 7210 SAS supports manual bootup for a VC.
To provision a node to belong to a VC, it must be configured with the chassis-role parameter set to standalone-vc. The chassis-role parameter is a BOF parameter in the boot loader context.
Of the two nodes configured as CPM-IMM, one becomes the active CPM and the other becomes the standby CPM, ready to move to the active role should the current active CPM fail.The node designated as the active CPM uses the configuration file available locally or remotely at boot up. It distributes the configuration to all members of the VC. Setting the chassis-role parameter to standalone-vc ensures that the member nodes of the VC do not use any local configuration at boot up.
The IMM-only node configuration and the service configuration is always done on the active CPM. The active CPM-IMM node distributes the configuration information to other VC members when the user has saved the TiMOS configuration.The IMM-only nodes receive the service configuration from the active CPM through VC management messages, while the standby CPM receives the service configuration through the high availability (HA) reconcile mechanism.
The active CPM-IMM also sends out VC management packets with VC configuration information to IMM-only member nodes. The IMM-only nodes use the management packets to obtain the VC configuration and join the VC.
The VC requires a single IP address and MAC address to be managed as a single entity. The current active CPM owns the IP address and responds to all the messages sent to this IP address and uses the MAC address as required (for example, for ARP).
The show>chassis command displays power, fan, and alarm statuses of the VC by consolidating the statuses of all cards provisioned in the VC. The show>card command displays power, fan, and alarm statuses for individual cards.
See Procedure to boot in the standalone-VC mode for information about booting the 7210 SAS-Sx/S 1/10GE in standalone-VC mode, including the booting sequenced, BOF prompts, and sample logs.