how to build a private cloud

{"cid":"91208651","title":"6520 Gen 5 Brocade SAN Switch BR-6520-48-8G-R 48 Port Active SFP+","imgUrl":"https:\/\/img.chinax.com\/nimg\/88\/24\/bd6f6e66ba16bfc832086a01e67d-200x200-1.jpg","attrs":{"Price":"Price is negotiable","Brand Name":"Brocade","Model Number":"BR-6520-48-8G-R","Minimum Order Quantity":"1pcs","Delivery Time":"3-5 working days","Certification":"CE SA KCC","Place of Origin":"Czech","Payment Terms":"T\/T, Western Union, MoneyGram, Paypal,Credit Card","Supply Ability":"500pcs per month","Packaging Details":"88x67x29cm","Generation":"5","Fibre Channel ports":"Switch mode (default): 48, 72, 96 port configurations (12-port increment through Ports on Demand [PoD] license)","Aggregate bandwidth":"1,536 Gbps: 96 ports \u00d7 16 Gbps data rate","Performance":"auto-sensing of 2 4 8 and 16Gbps port speeds","AC input":"85 V to 264 V ~5 A to 2.5 A","Data traffic types":"Fabric switches supporting unicast","weight":"25kg"}}