Click on the calculator icon in the upper left-hand corner. Your customer wants to use a VNX system at an unmanned DR site. The system will be used exclusively as a secondary MirrorView/A system, and it is capable of performing 30,000 LUN IOPs in this role. The primary system is also a VNX.
If the primary image workload consists of 4 KiB random IOs with a R/W ratio of 3:1, what is the maximum bandwidth required for the link between the VNX systems?
A.
240 Mb/s
B.
360 Mb/s
C.
480 Mb/s
D.
600 Mb/s
Here LUN IOPS = 30,000
Random IOs = 4 + 4(3:1) = 8
Therefore 30,000 * 8 =240,000 KiB = 240 Mb/s
Answer is 240 Mb/s.
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