Dell-EMC
E20-885 · Question #187
A customer wants to expand FAST Cache on their VNX with MCx. They are concerned about performance impact until the new FAST Cache has been created. What advice would you give the customer regarding…
The correct answer is A. Destroying the existing FAST Cache should be done during a period with low I/O activity. See the full explanation below for the reasoning.
Question
A customer wants to expand FAST Cache on their VNX with MCx. They are concerned about performance impact until the new FAST Cache has been created. What advice would you give the customer regarding the performance impact of changing the FAST Cache size?
Options
- ADestroying the existing FAST Cache should be done during a period with low I/O activity,
- BFAST Cache can be expanded non-disruptively without any performance impact.
- CBefore adding extra drives to the existing FAST Cache, the Read Cache should be disabled
- DBefore adding extra drives to the existing FAST Cache, the Write Cache should be disabled
How the community answered
(23 responses)- A83% (19)
- B4% (1)
- C9% (2)
- D4% (1)
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