EMC Proven Professional – XtremIO Solutions Expert — Question 11

A VMAX3 array has been configured to use TimeFinder SnapVX. A snapshot is taken of a LUN that currently resides on a 10k drive. Which mechanism will
SnapVX use when there is a write to a linked target volume?

Answer options

• A. COFW
• B. ROW
• C. ACORW
• D. COW

Correct answer: B

Explanation

The correct answer is ROW (Read-Only Write) because SnapVX uses this mechanism to ensure that writes to the linked target do not affect the original data in the snapshot. The other options, COFW (Copy on First Write), ACORW (Asynchronous Copy on Read Write), and COW (Copy on Write), do not apply in this context as they pertain to different data protection methods that are not utilized in this specific scenario.