Hello DBA's I have installed RAC now.But have a issue. After installation I have checked crs_stat -t in rac1 and everything was showing online. But after rebooting rac1 and rac2.When I do it again.I get the below result. rac1-> crs_stat -t Name Type Target State Host ———————————————————— ora.devdb.db application ONLINE ONLINE rac2 ora….b1.inst application ONLINE ONLINE rac1 ora….b2.inst application ONLINE OFFLINE ora….SM1.asm application ONLINE ONLINE rac1 ora….C1.lsnr application ONLINE UNKNOWN rac1 ora.rac1.gsd application ONLINE UNKNOWN rac1 ora.rac1.ons application ONLINE ONLINE rac1 ora.rac1.vip application ONLINE ONLINE rac1 ora….SM2.asm application ONLINE UNKNOWN rac2 ora….C2.lsnr application ONLINE UNKNOWN rac2 ora.rac2.gsd application ONLINE UNKNOWN rac2 ora.rac2.ons application ONLINE UNKNOWN rac2 ora.rac2.vip application ONLINE ONLINE rac2 rac1-> srvctl status nodeapps -n rac1 VIP is running on node: rac1 GSD is not running on node: rac1 Listener is not running on node: rac1 ONS daemon is running on node: rac1 rac1-> srvctl status nodeapps -n rac2 VIP is running on node: rac2 GSD is not running on node: rac2 Listener is not running on node: rac2 ONS daemon is not running on node: rac2 rac1-> srvctl status asm -n rac1 ASM instance +ASM1 is running on node rac1. rac1-> srvctl status asm -n rac2 ASM instance +ASM2 is not running on node rac2. rac1-> srvctl status database -d devdb Instance devdb1 is running on node rac1 Instance devdb2 is not running on node rac2 when I tried manually up the database in rac2 I receive below error: SQL> startup ORA-01078: failure in processing system parameters ORA-01565: error in identifying file ‘+DG1/devdb/spfiledevdb.ora’ ORA-17503: ksfdopn:2 Failed to open file +DG1/devdb/spfiledevdb.or ORA-15077: could not locate ASM instance serving a required diskgroup. I’m new to RAC please suggest me what needs to be done. Thanks, Mamta