To list the current dump destination:
#sysdumpdev -l

List the details of the previous dump:
#sysdumpdev -L

Starts dump in the primary dump device:
#sysdumpstart -p

Starts dump in the secondary dump device:
#sysdumpstart -s

To make lv69 as primary dump device:
#sysdumpdev -p /dev/lv69

To make lv69 as primary dump device permanently:
#sysdumpdev -P -p /dev/lv69

To make rmt69 as secondary dump device:
#sysdumpdev -s /dev/rmt69

To determine a new system dump occurred:
#sysdumpdev -z