lots of audit files under ASM home

Yesterday, I had as issue which was standby log shipping giving below error ,

PING[ARC2]: Heartbeat failed to connect to standby '<stbyDb>' Error is 1033.

On Standby server , db side was giving below error ,

NOTE: Deferred communication with ASM instance

ORA-09925: Unable to create audit trail file

Linux-x86_64 Error: 28: No space left on device

ASM side was giving also,

OS Audit file could not be created; failing after 6 retries

Oracle support has a note about this issue which is "Large Number of Audit Files Generated by Oracle Restart or Grid Infrastructure (Doc ID 1378881.1)"  . Oracle restart deamons is checking availability of registered services within  a CHECK_INTERVAL parameter duration.Default it is 1 second. 

crsctl status res ora.asm -p command shows that checking frequency of asm service availability is 1 second. Modifying value of parameter can avoid execessive generation of audit files. 

crsctl modify res ora.asm -attr "CHECK_INTERVAL=60"

But this change will provide checking service availability every minute and unavailability will be detected one minute later in worst case.If it is acceptable , parameter can be changed. I have not changed parameter. I have solved issue by adding script into crontab which work everyhour and deletes ASM audit files

1 * * * * rm -rf /oracle/app/grid/product/12.1.0/grid/rdbms/audit/*.aud