ORA-15203: diskgroup RECO contains disks from an incompatible version of ASM

Symptom:

  After you upgrade GI of oracle 12c ,  we bounce the ASM and hit this error when it mounts the asm disk groups. Diskgroups can't be mounted

ORA-15203: diskgroup RECO contains disks from an incompatible version of ASM

  Diagnose:

  When you dig in more details in ASM alert logs, you find such error

ORA-15203: diskgroup RECO contains disks from an incompatible version of ASM
ORA-15038: disk 'o/10.230.49.55/DBFS_DG_CD_02_test0008' mismatch on 'Time Stamp' with target disk group [2111006055] [2029972656]
ORA-15038: disk 'o/10.230.49.55/DBFS_DG_CD_07_test0008' mismatch on 'Time Stamp' with target disk group [2111006055] [2029972656]
ORA-15038: disk 'o/10.230.49.55/DBFS_DG_CD_09_test0008' mismatch on 'Time Stamp' with target disk group [2111006
   It indicates something wrong with this cell test0008
  
  Check   /etc/oracle/cell/network-config/cellip.ora
  Find out test0008 does not belong to this GI and test0008 is placed in another GI env.

Solution:

   Remove test0008 from cellip.ora