VMware Fail Over

We are planning to upgrade the hardware and software. VMware to current version, create 4 virtual machine OS Windows 2012 R2 standard. SQL 2014.
Q1) For fail over we need 3 physical server Master and 2 slave?
Q2) For Fail Over it has to be identical server cpu, memory, hard disk, etc..
Q3) We are planning to have the Master and first slave in the main office the second slave we are planning to have in another location distance 120 miles from the main office, we planning to connect via internet. For the virtual server were we created the sql 2014 if the first slave receive a lot of data eg  60GB daily ( our client instead of sending hard copy we are forcing for them to scan and insert into our public portal to our database). How VMware will work for fail over if we receive 60GB of data  daily to the first slave how is going to update the second one?
jamesbondkyAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
What are you failing over?

Hosts Virtual Machines or their Application s eg SQL
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jamesbondkyAuthor Commented:
Can you give both scenario, in your opinion which one would you recommend?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
To do this with VMware you need to have shared storage accessible by all hosts at all locations.

Do you have that?

And also fast like links
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jamesbondkyAuthor Commented:
The idea is : Main  building The master server and a slave server , the other location the second server  and San storage. The link by internet  bandwith is 50 megabits upload and download
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
That may support VMware HA and FT vMotion and DRS.
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