RAC Commands

Cluster Related     Commands
---------------         --------
crs_stat -t        Shows HA resource status (hard to read)
crsstat            Ouptut of crs_stat -t formatted nicely
ps -ef|grep d.bin    crsd.bin evmd.bin ocssd.bin
crsctl check crs    CSS,CRS,EVM appears healthy
crsctl stop crs        Stop crs and all other services
crsctl disable crs*    Prevents CRS from starting on reboot
crsctl enable crs*    Enables CRS start on reboot
crs_stop -all        Stops all registered resources
crs_start -all        Starts all registered resources

NOTE
----
* These commands update the file /etc/oracle/scls_scr/<node>/root/crsstart which contains the string “enable” or “disable” as appropriate.

Database Related Commands
-------------------------
srvctl start instance -d <db_name> -i <inst_name>    Starts an instance
srvctl stop instance -d <db_name> -i <inst_name>    Stops an instance
srvctl status instance -d <db_name> -i <inst_name>    Checks an individual instance

srvctl start database -d <db_name>            Starts all instances
srvctl stop database -d <db_name>            Stops all instances, closes database
srvctl status database -d <db_name>            Checks status of all instances

srvctl start service -d <db_name> -s <service_name>    Starts a service
srvctl stop service -d <db_name> -s <service_name>    Stops a service
srvctl status service -d <db_name>            Checks status of a service

srvctl start nodeapps -n <node_name>            Starts gsd, vip, listener, and ons
srvctl stop nodeapps -n <node_name>            Stops gsd, vip and listener

BACKGROUND PROCESSES
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There are three main background processes you can see when doing a ps –ef|grep d.bin.  They are normally started by init during the operating system boot process.  They can be started and stopped manually by issuing the command /etc/init.d/init.crs {start|stop|enable|disable}

/etc/rc.d/init.d/init.evmd
/etc/rc.d/init.d/init.cssd
/etc/rc.d/init.d/init.crsd

SERVICES
------------
Once the above processes are running, they will automatically start the following services in the following order if they are enabled.  This list assumes you are using ASM and have a service set up for TAF/load balancing.

1.The nodeapps (gsd, VIP, ons, listener) are brought online.
2.The ASM instances are brought online.
3.The database instances are brought online.
4.Any defined services are brought online.