ASM disk added without scan on second node

Question

Hi All ,
Oracle Version:11.2.0.3
I need one help for one issue with ASM disk addition.
It is a two node RAC and one disk group was filled.
One disk was available as UNUSED001 and so we renamed it ran scan disk  and added the disk to the diskgroup on node1.
But , as we did not run the scan disk on second node , the name is still showing as UNUSED001 and assigned to diskgroup so showing as MEMBER.
Also, the renamed disk is also showing as MEMBER but not assigned with any diskgroup.
Usually, when this heppens we have to reboot the node to fix the issue , but would like to get idea if this can be fixed without bouncing nodes.

Answer 1

Hi ,
+ Probably that disk addition failed with ORA-15075 as same named device is not visible after renaming of disk.
  As this validation takes place after writing disk header ,it is showing as MEMBER.
+ Get downtime of cluster on 2nd node and run scandisks on 2nd node.
+ Now renamed disk should be showing up on node 2.
+ if showing up ,then validate .
-- All expected diskgroups were mounted on both nodes or not
sql> select inst_id,name,state from gv$asm_diskgroup;
-- If mounted validate that renamed disk group_number and mount_status
sql> col path for a30
sql> select inst_id,group_number,path,mount_status from gv$asm_disk;
+ If group_number is 0 and mount_status is CLOSED ,then it is not part of any mounted diskgroup.
  Add that disk again with force option in same diskgroup.
sql> alter diskgroup <diskgroup_name> add disk 'ORCL:<LABEL_NAME>' force;
And allow rebalance to complete.
Regards,
Aritra