Permission denied when adding ASM disk
This is a simple one, a reminder till next time I forget this, since stuff encountered after a Google-search led me astray… Just in case you try to add disks to an existing ASM disk group using syntax like this: alter diskgroup data add disk '/dev/xvdd1' add disk '/dev/xvde1'; You may get error messages like these: ORA-15032: not all alterations performed ORA-15031: disk specification '/dev/xvde1' matches no disks ORA-15025: could not open disk '/dev/xvde1' ORA-15056: additional error message Linux-x86_64 Error: 13: Permission denied Additional information: 42 Additional information: -1614995373 Additional information: 1730318408 ORA-15031: disk specification '/dev/xvdd1' matches no disks ORA-15025: could not open disk '/dev/xvdd1' ORA-15056: additional error message Linux-x86_64 Error: 13: Permission denied Additional information: 42 Additional information: 87328232 Additional information: 8192 Solution: Use the ASM disk names as given when creating them with oracleasm: ...