ASM Diskgroups not mounting ORA-15040

 
ORA-15032 , ORA-15017 , ORA- 15040 , ASM Disk-group not found

ISSUE  after rebooting the server (ASM Disk groups not able to find)

The ASM diskgroup was nowhere to be found while querying the v$asm_diskgroup and v$asm_disks es.

ERROR: diskgroup ASM_DATA was not mounted

ORA-15032: not all alterations performed

ORA-15017: diskgroup "DATA" cannot be mounted

ORA-15040: diskgroup is incomplete







when ASM restarted

ran asmcmd > lsdg

No mount-points were visible

and while mounting the disk-groups manually its failing with the Error

ORA-15032 , ORA-15017 , ORA- 15040

Execute the following commands

$ORACLE_HOME/bin/kfod status=TRUE asm_diskstring='ORCL:*' disks=ALL

so running kfod again

/u01/app/grid/product/12.2.0/grid/bin/kfod status=TRUE asm_diskstring='/dev/oracleasm/disks/*' disks=ALL

 

--------------------------------------------------------------------------------

 Disk          Size Header    Path                                     User     Group

================================================================================

   1:     102400 MB MEMBER    /dev/oracleasm/disks/DATA_01         grid     oinstall

   2:     102400 MB MEMBER    /dev/oracleasm/disks/DATA_02         grid     oinstall

   3:     102400 MB MEMBER    /dev/oracleasm/disks/DATA_03         grid     oinstall

   4:     102400 MB MEMBER    /dev/oracleasm/disks/DATA_04         grid     oinstall

   5:     102400 MB MEMBER    /dev/oracleasm/disks/DATA_05         grid     oinstall

   6:     102400 MB MEMBER    /dev/oracleasm/disks/FRA_01          grid     oinstall

   7:     102400 MB MEMBER    /dev/oracleasm/disks/FRA_02          grid     oinstall

   8:     102400 MB MEMBER    /dev/oracleasm/disks/FRA_03          grid     oinstall

   9:     102400 MB MEMBER    /dev/oracleasm/disks/FRA_04          grid     oinstall

--------------------------------------------------------------------------------

ORACLE_SID ORACLE_HOME

================================================================================

      +ASM /u01/app/grid/product/12.2.0/grid

 

this display the correct disks so we need to change the diskstring to /dev/oracleasm/disks/*




Log in to the ASM instance as sysasm and set the asm_diskstring to what it was:




SQL> alter system set asm_diskstring='/dev/oracleasm/disks/*' scope=memory;

SQL> select name, state from v$asm_diskgroup;

NAME                           STATE
------------------------------ -----------
DATA                           DISMOUNTED
FRA                            DISMOUNTED
SQL> alter diskgroup DATA mount;

Diskgroup altered.

SQL> alter diskgroup FRA mount;

Diskgroup altered.

SYS@+ASM> select name, state from v$asm_diskgroup;

NAME                           STATE
------------------------------ -----------
DATA                           MOUNTED
FRA                            MOUNTED
Stop and restart HAS

crsctl stop has
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'a04978'
CRS-2673: Attempting to stop 'ora.ASM_FRA.dg' on 'a04978'
CRS-2673: Attempting to stop 'ora.ASM_DATA.dg' on 'a04978'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'a04978'
CRS-2677: Stop of 'ora.ASM_FRA.dg' on 'a04978' succeeded
CRS-2677: Stop of 'ora.ASM_DATA.dg' on 'a04978' succeeded
CRS-2673: Attempting to stop 'ora.evmd' on 'a04978'
CRS-2673: Attempting to stop 'ora.asm' on 'a04978'
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'a04978' succeeded
CRS-2677: Stop of 'ora.evmd' on 'a04978' succeeded
CRS-2677: Stop of 'ora.asm' on 'a04978' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'a04978'
CRS-2677: Stop of 'ora.cssd' on 'a04978' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'a04978' has completed
CRS-4133: Oracle High Availability Services has been stopped.

Start HAS 

 $ crsctl start has
CRS-4123: Oracle High Availability Services has been started.
 

Now restart the database and check disks are visible