RAC statement knowledge 1. check the CRS status crsctl check crscrsctl check hascrsctl check clustercrsctl check cluster-allcrsctl stat res-t crsctl stat res-t-init 2, VOT disk query crsctl query css votedisk 3, Verify the integrity of OCR: ocrcheck 4, view the resource status crsctl stat res-tcrsctl stat res-t-init 5, start crsctl start hascrsctl start cluster crsctl start cluster-allcrsctl start cluster-n cqracdb1 [start the entire cluster, including OHASD on a node] crsctl start crs6, stop crsctl stop cluster-n cqracdb1 crsctl stop cluster [-f] crsctl stop cluster-allcrsctl stop has [all stop including OHASD] crsctl stop crs-all-f 7, view database status srvctl status database-d cqdb view node Resource status srvctl status nodeapps view database configuration srvctl config database-d cqdb view asm configuration srvctl config asm-a view TNS configuration srvctl config listener-a view SCANsrvctl status scan stop database srvctl stop instance-d cqdb-I "orl3, orcl4 "-o immediate query crs status: crsctl config crscrsctl config has