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Dell-EMC

E20-885 · Question #260

A heterogeneous Pool is created as follows: - 5 x 200 GB FAST VP optimized Flash drives, configured as 4+1 R5 - 10 x 600 GB 10K rpm SAS drives, configured as 4+1 R5 - 16 x 2 TB NL-SAS drives…

The correct answer is C. 10,400 IOPS. See the full explanation below for the reasoning.

Question

A heterogeneous Pool is created as follows:

  • 5 x 200 GB FAST VP optimized Flash drives, configured as 4+1 R5
  • 10 x 600 GB 10K rpm SAS drives, configured as 4+1 R5
  • 16 x 2 TB NL-SAS drives, configured as 6+2 R6

Ten equal-sized thick LUNs are created on the pool at 5 minute intervals. No space is left in the pool. All parameters are left at the default value. Testing is started at 9:00 AM on the 10 LUNs using IOmeter. The R/W ratio for the testing is set at 3:1, and 4 kB random I/Os are performed. What throughput should you expect to see from the LUN that was created first?

Options

  • A3,500 IOPS
  • B5,000 IOPS
  • C10,400 IOPS
  • D18,200 IOPS

How the community answered

(38 responses)
  • A
    8% (3)
  • B
    13% (5)
  • C
    76% (29)
  • D
    3% (1)

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