Setup : RAC database : 12.1 CRS : 12.1 [grid@gract1 gpnpd]$ srvctl start database -d gract1 PRCR-1079 : Failed to start resource ora.gract1.db CRS-2643: The server pool(s) where resource 'ora.gract1.db' could run have no servers Check the pool our datbase is connected to: [grid@gract1 gpnpd]$ srvctl config database -d gract1 Database unique name: gract1 Database name: gract1 Oracle home: /u01/app/oracle/product/121/racdb Oracle user: oracle Spfile: +DATA/gract1/spfilegract1.ora Password file: +DATA/gract1/orapwgract1 Domain: Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: 12c_pool Database instances: Disk Groups: DATA Mount point paths: Services: pdb_s1 Type: RAC Start concurrency: Stop concurrency: Database is policy managed --> Database is attached to 12c_pool Check server pool setup [grid@gract1 gpnpd]$ srvctl status serverpool -detail Server pool name: Free Active servers count: 0 Active server names: Server pool name: Generic Active servers count: 0 Active server names: Server pool name: 12c_pool Active servers count: 0 Active server names: Server pool name: NEW_12c_pool Active servers count: 1 Active server names: gract1 NAME=gract1 STATE=ONLINE --> 12c_pool doesn't have any active server Relocate database to the NEW_12c_pool [grid@gract1 gpnpd]$ srvctl modify database -d gract1 -g NEW_12c_pool [grid@gract1 gpnpd]$ srvctl config database -d gract1 Database unique name: gract1 Database name: gract1 Oracle home: /u01/app/oracle/product/121/racdb Oracle user: oracle Spfile: +DATA/gract1/spfilegract1.ora Password file: +DATA/gract1/orapwgract1 Domain: Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: NEW_12c_pool Database instances: Disk Groups: Mount point paths: Services: pdb_s1 Type: RAC Start concurrency: Stop concurrency: Database is policy managed Verify that database is started an available in gract1 [grid@gract1 gpnpd]$ ps -elf | grep smon 0 S oracle 17516 1 0 80 0 - 406310 semtim 12:49 ? 00:00:00 ora_smon_gract1_1 [root@gract1 Desktop]# srvctl status database -d gract1 Instance gract1_1 is running on node gract1