Question about VNX sizing for Citrix VDI

Hi

I am trying to check the required for Citrix VDI

having the number of users and required number of Disks

please advise on below example

IOPS  14x100=1400 IOPS  80% Write & 20%vRead

Total Storage requirements – 2 TB Usable

if using RAID 10 using 14 disks 15k you will have a global IOPs of 1400 exactly

this is calculated by below equation:

"(14*180)/(0.2+(2*0.8)) RAID 10"

"14 number of disks"

"180 the iops per disk"

"0.2 the read percentage"

"2 RAID penalty"

"0.8 the write precentage"

reference is

"https://community.emc.com/message/689928"

is that right about this caculation ?

any other advises ?

how to decide number of Data Movers ?

Thanks