ora.proxy_advm

[grid@caiqidb1 audit]$ crsctl stat res ora.proxy_advm -t
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.proxy_advm
               OFFLINE OFFLINE      caiqidb1                 STABLE
               OFFLINE OFFLINE      caiqidb2                 STABLE
--------------------------------------------------------------------------------

[grid@caiqidb1 audit]$ crsctl get cluster mode status
Cluster is running in "flex" mode
[grid@caiqidb1 audit]$ crsctl get node role status -all
Node 'caiqidb1' active role is 'hub'
Node 'caiqidb2' active role is 'hub'

Oracle ACFS and Oracle ADVM in Oracle Flex ASM Configuration

Oracle ACFS access through the Oracle ASM proxy instance

An Oracle ASM proxy instance is an Oracle instance running on a Hub node with a direct Oracle ASM client. An Oracle ASM proxy instance provides support for Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dynamic Volume Manager (Oracle ADVM).
The INSTANCE_TYPE initialization parameter is set to ASMPROXY for Oracle ASM proxy instances.

参考文档：
Automatic Storage Management Administrator's Guide
https://docs.oracle.com/en/database/oracle/oracle-database/18/ostmg/manage-flex-asm.html#GUID-39D13B70-30AE-4DFE-BFF9-2CD3A33A82E0
http://feed.askmaclean.com/archives/asm-proxy-new-instance-type-in-oracle-12c.html
https://www.red-gate.com/simple-talk/sql/oracle/asm-proxy-new-instance-type-in-oracle-12c/