ORA-15131: block string of file string in diskgroup string could not be read

Cause : A block could not be read because the disk containing the block is either offline or an I/O error occured while reading the block. If this is mirrored file, then all disks that contain a the block are either offline or received errors.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Repair the affected disk and bring it back online. Refer to accompanying error messages to determine which disk has failed.

update : 22-06-2017
ORA-15131

ORA-15131 - block string of file string in diskgroup string could not be read
ORA-15131 - block string of file string in diskgroup string could not be read

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