Common RAC faults

Zookeeper

Host restart -- RAC cannot be started:
1: storage is out of order.
Ocr voting/etc/udev/rules. d/60-raw.rules

Check CSS logs

2. Check whether the private network is faulty.
Ping
Cluvfy

Frequent interruption of RAC access:
Local_listener
Ip status

Sometimes restarting the crs service or restarting the HACMP can solve the problem.

3. due to incorrect permissions on the ASM disk (oracle: dba), the ASM process cannot be suspended.
Cause: the authorization statement in/etc/rc. local does not take effect.
Solution: Check whether the/etc/rc. local authorization statement is correct.
Or manually configure an on_ OS _start.sh script to add:
Chown oracle: dba/dev/sdb2
....

Then, execute crsctl stop crs and crsctl start crs on both nodes;
Restart the cluster.