RAC Administration Commands

RAC Administration -  10gR2   Start, stop and check CRS (Cluster Ready Services) Start/stop nodeapps Start/stop asm Start/stop a database (all nodes) Start/stop an individual instance Check the VIP config Change the VIP address, subnetmask or interface Locate the voting disk Retrieve OCR (Oracle Cluster Registry) information To prevent a database starting at boot time Change the private interconnect subnet  Start, stop and check CRS (Cluster Ready Services) Note. Start/stop need to be run as root from the CRS home. Start CRS crsctl start crs Stop CRS crsctl stop crs Check CRS's status crsctl check crs See the status of the various services crs_stat -t

Start/stop nodeapps srvctl start nodeapps -n <node name> srvctl stop nodeapps -n <node name>

Start/stop asm srvctl start asm -n <node name> srvctl stop asm -n <node name>

Start/stop a database (all nodes) srvctl start database -d <database name> srvctl stop database -d <database name>

Start/stop an individual instance srvctl start instance -d <database name> -i <instance name> srvctl stop instance -d <database name> -i <instance name>

Check the VIP config srvctl config nodeapps -n <node> -a -g -s -l

Change the VIP address, subnetmask or interface srvctl stop nodeapps -n <node1> srvctl stop nodeapps -n <node2> srvctl modify nodeapps -n <node1> -A <ip_address>/<net mask>/<interface> srvctl modify nodeapps -n <node2> -A <ip_address>/<net mask>/<interface> srvctl start nodeapps -n <node1> srvctl start nodeapps -n <node2>

Locate the voting disk crsctl query css votedisk

Retrieve OCR (Oracle Cluster Registry) information ocrcheck

To prevent a database starting at boot time srvctl disable database -d <database name>

Change the private interconnect subnet First find the interface which is in use as the interconnect - run as root from the crs home: oifcfg getif Make a note of the interface name (eth1 in the following example), then run the following: oifcfg delif -global eth1 oifcfg setif -global eth1/<your new subnet>:cluster_interconnect