How can you ensure that a consistent database status is saved using data snapshots?
How can you ensure that a consistent database status is saved using data snapshots?
To ensure that a consistent database status is saved using data snapshots, you need to create an internal database snapshot. This internal snapshot captures a view of the database at a specific point in time, ensuring data consistency. Without this snapshot, the data captured may not represent the exact state of the database, especially if changes are being made concurrently. This method is crucial for maintaining accurate and reliable data for subsequent use.
Answer is actually C. Please check admin guide for Note; "To ensure its consistent state, the data snapshot relies on the previously created internal database snapshot. If the database or a database service is restarted, the internal database snapshot is lost."
Answer is C
The internal database snapshot ensures the consistent state of the data snapshot. This is particularly important if multiple storage volume groups are involved.
Answer is C
From HA200: To create a data snapshot, first create an internal database snapshot. This internal database snapshot provides a view of the database at the point in time that it was started.