一、故障现象:

告警日志:
Sun Feb 09 14:18:42 2020
Auto-tuning: Shutting down background process GTX2
Sun Feb 09 15:06:00 2020
NOTE: ASMB terminating
Errors in file /opt/oracle/app/diag/rdbms/xxxx/xxxx1/trace/xxxx1_asmb_7463.trc:
ORA-15064: communication failure with ASM instance
ORA-03113: end-of-file on communication channel
Process ID:
Session ID: 68 Serial number: 5
Errors in file /opt/oracle/app/diag/rdbms/xxxx/xxxx1/trace/xxxx1_asmb_7463.trc: