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Exam DES-1121 topic 1 question 35 discussion

Actual exam question from Dell's DES-1121
Question #: 35
Topic #: 1
[All DES-1121 Questions]

When using TimeFinder SnapVX, why would a redirect-on-write be changed to a copy-on-write?

  • A. Snapshot delta has used 80% of the SRP
  • B. Prevent a new write from being demoted to a lower tier
  • C. Back-end utilization exceeds 80%
  • D. Improve wear rates on flash disks
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Suggested Answer: D 🗳️
by TrinhLK at April 11, 2024, 9:15 a.m.

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TrinhLK
1 year ago
Selected Answer: B
Even though ROW provides many benefits, there are situations where the traditional Asynchronous Copy on First Write (ACOFW) mechanism that has been used by TimeFinder for many years is the ideal option. For example, to prevent source data from being redirected to a less than ideal performance or compression tier.
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TrinhLK
1 year ago
https://infohub.delltechnologies.com/en-US/l/dell-emc-powermax-and-vmax-all-flash-timefinder-snapvx-local-replication-1/redirect-on-write/
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