SAN School Quiz 3 Answer # 10 |
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28 Jan 2004 | SearchStorage.com |
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Question #10
Snapshot copies use a technology known as:
a. Instant image
b. Primary image
c. Echo
d. Copy on write
Were you correct? The correct answer is
d. Copy on write
Learn more:
Copy-on-write is a technology that allows for point-in-time copy that only writes modified blocks of data to a backup target. This approach creates efficiency in backup by requiring the user to back up a smaller percentage of data -- because it's only writing data that has been changed since the last snapshot was taken.
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