ORA-15096: lost disk write detected

admin

ORA-15096: lost diskwrite detected
Cause: A failure either by disk hardware or disk softwarecaused a disk write to
to be lost, even though ASM received acknowledgement that the write completed.
Alternatively, a clustering hardware failure or a clustering software failure
resulted in an ASM instance believing that another ASM instance had crashed,
when in fact it was still active.
Action: Thedisk group is corrupt and cannot be recovered. The disk group must
be recreated, and its contents restored from backups.