Oracle : Ошибка ORA-15038

"disk '%s' mismatch on '%s' with target disk group [%s] [%s]"
*Cause: An attempt was made to mount into a disk group a disk whose
recorded allocation unit size, metadata block size, physical
sector size, or creation time stamp was inconsistent with the other
disk group members.
*Action: Check if the system configuration has changed. Verify disk
discovery string.

Попробовать перевести

Поискать эту ошибку на форуме