[grid@rac03 ~]$ lsnrctl status LISTENER_SCAN1

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 26-SEP-2023 14:49:52

Copyright (c) 1991, 2013, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 26-SEP-2023 09:19:53
Uptime 0 days 5 hr. 29 min. 58 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/grid/grid_home/11.2.0.4/network/admin/listener.ora
Listener Log File /u01/grid/grid_home/11.2.0.4/log/diag/tnslsnr/rac03/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.56.199)(PORT=1521)))
Services Summary...
Service "service_s1" has 1 instance(s).
Instance "slnngk1", status READY, has 1 handler(s) for this service...
Service "service_s2" has 1 instance(s).
Instance "slnngk1", status READY, has 1 handler(s) for this service...
Service "service_s3" has 1 instance(s).
Instance "slnngk1", status READY, has 1 handler(s) for this service...
Service "slnngk" has 3 instance(s).
Instance "slnngk1", status READY, has 1 handler(s) for this service...
Instance "slnngk2", status READY, has 1 handler(s) for this service...
Instance "slnngk3", status READY, has 1 handler(s) for this service...
Service "slnngkXDB" has 3 instance(s).
Instance "slnngk1", status READY, has 1 handler(s) for this service...
Instance "slnngk2", status READY, has 1 handler(s) for this service...
Instance "slnngk3", status READY, has 1 handler(s) for this service...
The command completed successfully

发现这里scan listener没有监听asm实例。