CRS:
/u01/app/grid/diag/crs/[DB_NAME]/crs/trace/
alert.log
ASM:
/u01/app/grid/diag/asm/+asm/+ASM1/trace/alert_+ASM1.log
Force a shutdown of Oracle Clusterware (CRS) :
Using root
cd /u01/app/19.0.0/grid/bin
./crsctl stop crs -f
Check detail of network card e.g.
[oracle@srv1 bin]$ nmcli device show enp0s10
GENERAL.DEVICE: enp0s10
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 08:00:27:62:8A:33
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: Wired connection 5
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/3
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 192.168.1.140/24
IP4.GATEWAY: 192.168.1.1
IP4.ROUTE[1]: dst = 0.0.0.0/0, nh = 192.168.1.1, mt = 102
IP4.ROUTE[2]: dst = 192.168.1.0/24, nh = 0.0.0.0, mt = 102
IP4.DNS[1]: 192.168.1.1
IP6.ADDRESS[1]: fe80::5f91:3967:1437:483f/64
IP6.GATEWAY: --
IP6.ROUTE[1]: dst = fe80::/64, nh = ::, mt = 102
IP6.ROUTE[2]: dst = ff00::/8, nh = ::, mt = 256, table=255
[oracle@srv1 bin]$
