E20-816 · Question #46
Click on the calculator icon in the upper left corner. A new storage request is submitted for the production instance of an new application from development. The request is for 3 x 200GB LUNs on a…
The correct answer is A. Allocate 3 x 4-way striped meta devices using 50GB hypers. See the full explanation below for the reasoning.
Question
Click on the calculator icon in the upper left corner. A new storage request is submitted for the production instance of an new application from development. The request is for 3 x 200GB LUNs on a recently purchased VMAX array. While discussing the request with the application team they mention that performance of their test environment has been poor during load testing on an existing DMX-4 array. You check Performance Manager statistics for the DMX-4 and discover that they are using 3 x 100GB LUNs for testing and they are sometimes reaching Device Write Pending. What will best avoid the Write Pending issue in production?
Options
- AAllocate 3 x 4-way striped meta devices using 50GB hypers
- BAllocate 3 x 200GB devices and reduce the System Write Pending limit to 70%
- CAllocate 3 x 200GB devices and increase the Device Write Pending limit to 10%
- DAllocate 3 x 4-way striped meta devices using 200GB hypers
How the community answered
(20 responses)- A75% (15)
- B15% (3)
- C5% (1)
- D5% (1)
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