dmdsc 两节点，节点1启动提示需要访问心跳的9340端口，这是为啥了？rac应该两个实例是独立的，为啥启动节点1实例需要访问节点2实例的端口了？

vi /dm/dmdbms/dm8/data/dminit.ini
db_name = orcldsc
system_path = +DGDATA01/data
system = +DGDATA01/data/orcldsc/system.dbf
system_size = 128
roll = +DGDATA01/data/orcldsc/roll.dbf
roll_size = 128
main = +DGDATA01/data/orcldsc/main.dbf
main_size = 128
ctl_path = +DGDATA01/data/orcldsc/dm.ctl
ctl_size = 8
log_size = 256
dcr_path = /dev/raw/raw1
dcr_seqno = 0
auto_overwrite = 1
[orcldsc1]
config_path = /dm/dmdbms/dm8/data/orcldsc1_config
port_num = 5236
mal_host = 10.0.0.1
mal_port = 9340
log_path = +DGLOG/log/orcldsc1_log01.log
log_path = +DGLOG/log/orcldsc1_log02.log
[orcldsc2]
config_path = /dm/dmdbms/dm8/data/orcldsc2_config
port_num = 5236
mal_host = 10.0.0.2
mal_port = 9340
log_path = +DGLOG/log/orcldsc2_log01.log
log_path = +DGLOG/log/orcldsc2_log02.log