Obtaining Control Board Failover Information

Use the showfailover(1M) command on the main SSP to obtain the failover state of an SSP or control board failover and the status of the private connection links. The names of the SSPs and control boards are also provided, and the control boards responsible for the JTAG interface and system clock are identified. For details on the failover information displayed, see "Obtaining Failover Status Information".

The following example shows the information displayed for a control board failover in which the primary control board failed.

ssp% showfailover  
Failover State:
     SSP Failover: Active
     CB Failover:  Failed
Failover Connection Map:
     Main SSP to Spare SSP thru Main Hub:   GOOD
     Main SSP to Spare SSP thru Spare Hub:  GOOD
     Main SSP to Primary Control Board:     FAILED
     Main SSP to Spare Control Board:       GOOD
     Spare SSP to Main SSP thru Main Hub:   GOOD
     Spare SSP to Main SSP thru Spare Hub:  GOOD
     Spare SSP to Primary Control Board:    FAILED
     Spare SSP to Spare Control Board:      GOOD
SSP/CB Host Information
     Main SSP:                              xf12-ssp
     Spare SSP:                             xf12-ssp2
     Primary Control Board (JTAG source):   xf12-cb1
     Spare Control Board:                   xf12-cb0
     System Clock source:                   xf12-cb1

You can also use Hostview to verify the type of control board failover (complete or partial). When you use Hostview to verify a control board, the "J" (JTAG) and "C" (system clock source) characters indicate which control board manages the JTAG interface and system clock.

Figure 9-1 shows an example Hostview window after a partial control board failover. One control board handles the JTAG interface, while the other serves as the system clock source.

Figure 9-1 Example Hostview Window After a Partial Control Board Failover