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Thursday, December 29, 2016

Unable to Mount ASM DiskGroup

Your ASM disk group will be vanished for some reasons

if you try to mount it you will get an error some thing like the below

SQL> alter diskgroup DATA1 mount;
     alter diskgroup DATA1 mount
     ERROR at line 1:
     ORA-15032: not all alterations performed

to do so issue the below command

oracleasm scandisks

and then bring the diskgrop online.

SQL> alter diskgroup DATA1 mount;

           Diskgroup altered


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