Dell EMC Specialist – Systems Administrator, PowerEdge Server — Question 84

Data is written on a source track and the original data needs to be preserved for a snapshot. Which technology does TimeFinder SnapVX use to prevent a new write from being demoted to a lower tier?

Answer options

• A. NoCopy mode
• B. Copy mode
• C. Redirect-on-write
• D. Copy-on-write

Correct answer: D

Explanation

The correct answer is D, Copy-on-write, as this method allows new writes to be redirected without overwriting the original data. Options A and B do not involve preserving the original data in the same manner, and C, Redirect-on-write, is not the mechanism used by TimeFinder SnapVX for this purpose.