1、估算dump设备所需要的大小

sysdumpdev -e

0453-041 Estimated dump size in bytes: 89758105

2、改变主dump设备的位置

sysdumpdev -P -p ‘/dev/hd6′

primary /dev/hd6

secondary /dev/sysdumpnull

copy directory /var/adm/ras

forced copy flag TRUE

always allow dump FALSE

dump compression ON