QuestionQ18

Analyze and Optimize Storage Performance

An administrator has a VM that consumes a large amount of storage and has these characteristics:

  • It creates large, sequential writes.
  • Its data must be retained for years.
  • The data is normally accessed only at the end of each year to run a report.

The administrator decides to use Erasure Coding to conserve space. Which feature should the administrator use to save space for this VM?

  • A Inline Compression
  • B Flash Mode
  • C Cache Dedup
  • D Post-Process Compression
Explanation

Post-process compression is appropriate for cold, long-retained data that is written in large sequential streams and accessed infrequently. It compresses data asynchronously after it has been written, reducing storage consumption without adding compression processing to the write path.

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