I ask for help with the choice of SAN?

Question

Storage Area Network

Colleagues, I ask for help in choosing storage.
There are several offers from various vendors, at the last stage there are three options left from Lenovo and
HP Lenovo ds2200
Lenovo ds4200
Lenovo 3700v2
Hp msa 2052
Maybe someone is familiar with them, I ask for help in choosing.
It is not entirely clear by what criteria to make a choice in favor of one of the solutions.

Answer 1

The cost of discs, the cost of licenses, the availability of spare parts, the speed of delivery of spare parts, and the total cost of the kit. When I bought in August, my choice fell on infortrend ds1012. Spare parts in stock delivery within 4 hours. Disks 3.5, 2.5 sata, ssd, a large number of supported vendors. Not advertising :)