NCP-DB practice question 26 of 35

An NDB administrator is looking to free up some space consumption in the container that NDB uses to manage a database landscape. Where are two of the best locations within NDB that the administrator could view to see where the most storage is being consumed, in order to research for reclamation? (Choose two.)

Full set: 251 questions
Answer options
A: NDB Dashboard and view the Clone Data Age in days.
B: View the Source Database grid to determine the size and status of registered databases.
C: View the Clone Database table to determine the Size and Last Refresh of clone databases. Correct answer
D: View the Snapshot table in Time Machine to determine Reclaimable Space and Age of snapshots that have been taken. Correct answer
Correct Answer:
C. View the Clone Database table to determine the Size and Last Refresh of clone databases.; D. View the Snapshot table in Time Machine to determine Reclaimable Space and Age of snapshots that have been taken.
Explanation

The two primary consumers of storage managed by NDB are database clones and snapshots. To identify the largest consumers for potential reclamation, an administrator should directly examine these areas. The "Clone Database" table provides a clear view of all existing clones and their respective storage "Size". The "Snapshot" table within a database's Time Machine is even more specific, providing a "Reclaimable Space" column that calculates the exact amount of storage that would be freed by deleting that snapshot and its dependencies.

Why Incorrect

A. The NDB Dashboard provides a high-level summary, and "Clone Data Age" is an indirect indicator of potential reclamation, not a direct measure of space consumption.
B. The Source Database grid shows the size of the original databases, not the additional space consumed by NDB's snapshots and clones, which is the target for reclamation.

References

1. Nutanix Database Service (NDB) User Guide v2.5, Chapter: Database Life Cycle Management, Section: Monitoring Clones. The documentation shows the Clones view includes a "Size" column.

2. Nutanix Database Service (NDB) User Guide v2.5, Chapter: Data Protection with Time Machine, Section: Managing Time Machine Snapshots. The documentation describes the snapshot table, which includes the "Reclaimable Space" column, indicating the space you can reclaim by deleting a snapshot.

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