Starting instance fails: [grid@grac42 ~]$ srvctl start instance -d grac4 -i grac41 PRCR-1013 : Failed to start resource ora.grac4.db PRCR-1064 : Failed to start resource ora.grac4.db on node grac41 CRS-5017: The resource action "ora.FRA.dg start" encountered the following error: ORA-15032: not all alterations performed ORA-15017: diskgroup "FRA" cannot be mounted ORA-15063: ASM discovered an insufficient number of disks for diskgroup "FRA" . For details refer to "(:CLSN00107:)" in "/u01/app/11204/grid/log/grac41/agent/crsd/oraagent_grid/oraagent_grid.log". CRS-2674: Start of 'ora.FRA.dg' on 'grac41' failed Check for available ASM DG [grid@grac42 ~]$ asmcmd lsdg State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name MOUNTED NORMAL N 512 4096 1048576 40944 18561 10236 4162 0 N DATA/ MOUNTED EXTERN N 512 4096 1048576 40952 40761 0 40761 0 N FRA2/ MOUNTED NORMAL N 512 4096 4194304 6132 4960 2044 1458 0 Y OCR/ --> DG FRA replaced by new DG FRA2 ! Check database resource [grid@grac42 ~]$ srvctl config database -d grac4 Database unique name: grac4 Database name: grac4 Oracle home: /u01/app/oracle/product/11204/racdb Oracle user: oracle Spfile: +DATA/grac4/spfilegrac4.ora Domain: Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: grac4 Database instances: grac41,grac42,grac43 Disk Groups: DATA,FRA Mount point paths: Services: grac41,grac42,grac43,report Type: RAC Database is administrator managed --> Database startup still depends on FRA DG ot@grac42 Desktop]# srvctl modify database -d grac4 -a 'DATA,FRA2' [root@grac42 Desktop]# [root@grac42 Desktop]# srvctl config database -d grac4 Database unique name: grac4 Database name: grac4 Oracle home: /u01/app/oracle/product/11204/racdb Oracle user: oracle Spfile: +DATA/grac4/spfilegrac4.ora Domain: Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: grac4 Database instances: grac41,grac42,grac43 Disk Groups: DATA,FRA2 Mount point paths: Services: grac41,grac42,grac43,report Type: RAC Database is administrator managed Drop the old resource for FRA DG [root@grac42 Desktop]# crsctl delete resource 'ora.FRA.dg' Restart instance [grid@grac42 ~]$ srvctl start instance -d grac4 -i grac42