I thought if i gave asmadmin to oracle, i 'll be able to connect sysasm with oracle isn't it ?. And it could be a problem. And it's work pretty with another server dbyac41: [root@dbyac41: sysconfig]# id grid uid=1100(grid) gid=1000(oinstall) groups=1200(asmadmin),1201(asmdba),1202(asmoper),1000(oinstall) [root@dbyac41: sysconfig]# id oracle uid=1101(oracle) gid=1000(oinstall) groups=1201(asmdba),1300(dba),1301(oper),1000(oinstall) [root@dbyac41: ~]# vi /etc/sysconfig/oracleasm ORACLEASM_ENABLED=true ORACLEASM_UID=grid ORACLEASM_GID=asmadmin ORACLEASM_SCANBOOT=true [root@dbyac41: ~]# ps -ef|grep pmon root 8685 8385 0 16:49 pts/3 00:00:00 grep pmon grid 9736 1 0 11:42 ? 00:00:00 asm_pmon_+ASM1 oracle 15800 1 0 12:14 ? 00:00:00 ora_pmon_BYAC BYAC use ASM disgroup without problem. Regards; 2010/2/23 Robert Bialek <bialekr@xxxxxxxxx> > Hello Thierry, > > > Hello David, >> >> [root@dbyac43: ~]# id grid >> uid=1100(grid) gid=1000(oinstall) >> groups=1200(asmadmin),1201(asmdba),1202(asmoper),1000(oinstall) >> [root@dbyac43: ~]# id oracle >> uid=1101(oracle) gid=1000(oinstall) >> groups=1201(asmdba),1300(dba),1301(oper),1000(oinstall) >> >> what is the GID of the oracle RDBMS binary? asmadmin? If not change it to > asmadmin and try again... > > Cheers, > Robert >