Answer: A mirrored on-line redo log consists of copies of on-line redo log files physically located on separate disks, changes made to one member of the group are made to all members.
Question:
What is Mirrored on-line Redo Log ? Answer:
A mirrored on-line redo log consists of copies of on-line redo log files physically located on separate disks, changes made to one member of the group are made to all members. Source: CoolInterview.com
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