E20-526 · Question #39
You have been asked to design an XtremIO storage array solution that will be used for two large applications workloads. One overload will generate approximately 150,000 write IOPs with an average 4…
The correct answer is A. 2. Second write workload IOPS = 2 GB/s divided by 128 kB = 2 x 1,073,741,824 / (128 x 1,024) = Total IOPS required would be 150,000, from the first workload, plus 16384, totaling 166384. A 2 X-Brick cluster provides 300K Read/write IOPS so it would be adequate. Storage capacity…
Question
You have been asked to design an XtremIO storage array solution that will be used for two large applications workloads. One overload will generate approximately 150,000 write IOPs with an average 4 kB I/O size. The second write workload will have an average I/O size of 128 kB and will generate approximately 2 GB/s of throughput. At a minimum, how many X-Bricks are needed in a single cluster to meet this requirement?
Options
- A2
- B4
- C6
- D8
How the community answered
(31 responses)- A74% (23)
- B16% (5)
- C3% (1)
- D6% (2)
Explanation
Second write workload IOPS = 2 GB/s divided by 128 kB = 2 x 1,073,741,824 / (128 x 1,024) = Total IOPS required would be 150,000, from the first workload, plus 16384, totaling 166384. A 2 X-Brick cluster provides 300K Read/write IOPS so it would be adequate. Storage capacity and performance scale linearly, such that two X-Bricks supply twice the IOPS, four X-Bricks supply four times the IOPS, six X-Bricks supply six times the IOPS and eight X- Bricks supply eight times the IOPS of the single X-Brick configuration. Note: Choose an EMC XtremIO system and scale out linearly by adding more XtremIO X-Bricks. All-Flash-Scale-Out-Array/p/EMC-XtremIO-Flash-Scale-Out
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