Architecting EIM solution

Experts,
I want to provide an EIM solution for 750 agents. I picked this up from the docwiki
EIMWIM_Template_7_v9.0.ova
Deployed Template Name:
CUEIM-WIM_CIM9_7
Deployment Option:
750 Agents - Email and Chat or
360 Agents - BC and Call Back
Component
Number of VM to be deployed
vCPU
HDD
RAM
File Server
1
2
1 x 80GB
2 GB
Messaging Server
1
2
1 x 80GB
2 GB
Application Server
1
2
1 x 80GB
2 GB
Web Server
1
1
1 x 80GB
1 GB
Services Server
1
2
1 x 80GB
4 GB
Database Server
1
8
1 x 80 GB for OS and 1 x 438 GB for DB for DB
16 GB
Customer has 2 data centers that about 20 miles apart have a P2P link between the D.C and a backup WAN link as well
My question is
If customer wants HA or redundancy across both the D.C,  how do I design the solution
Can I just double the quantity in the VM and replicate all the components in the other D.C ?
Please let me know what is the ideal solution to achieve the HA.
I referred the SRND BUT, I am unable to get what I need
ashwin (from egain) response was  "Yes, it will be equivalent to doing a new deployment in DC2. You will also need to setup database replication jobs between the SQL DB of DC1 and that of DC2. This is a standard Microsoft procedure. Plus, when DC1 goes down, DC2 must be brought up manually – procedure called cold standby. This deployment is outside of the main product-supported deployments, because of additional factors such as SQL replication, cold standby steps, etc, so more often than not, will involve eGain PS engagement."
My biggest concren is that if I place the componenst across two D.C is that even a supported model. I don't want the customer to deploy an unsupported model . Please recommed the right architecture. I have attcahed the arch diagram & blade mapping as well

Experts,
I want to provide an EIM solution for 750 agents. I picked this up from the docwiki
EIMWIM_Template_7_v9.0.ova
Deployed Template Name:
CUEIM-WIM_CIM9_7
Deployment Option:
750 Agents - Email and Chat or
360 Agents - BC and Call Back
Component
Number of VM to be deployed
vCPU
HDD
RAM
File Server
1
2
1 x 80GB
2 GB
Messaging Server
1
2
1 x 80GB
2 GB
Application Server
1
2
1 x 80GB
2 GB
Web Server
1
1
1 x 80GB
1 GB
Services Server
1
2
1 x 80GB
4 GB
Database Server
1
8
1 x 80 GB for OS and 1 x 438 GB for DB for DB
16 GB
Customer has 2 data centers that about 20 miles apart have a P2P link between the D.C and a backup WAN link as well
My question is
If customer wants HA or redundancy across both the D.C,  how do I design the solution
Can I just double the quantity in the VM and replicate all the components in the other D.C ?
Please let me know what is the ideal solution to achieve the HA.
I referred the SRND BUT, I am unable to get what I need
ashwin (from egain) response was  "Yes, it will be equivalent to doing a new deployment in DC2. You will also need to setup database replication jobs between the SQL DB of DC1 and that of DC2. This is a standard Microsoft procedure. Plus, when DC1 goes down, DC2 must be brought up manually – procedure called cold standby. This deployment is outside of the main product-supported deployments, because of additional factors such as SQL replication, cold standby steps, etc, so more often than not, will involve eGain PS engagement."
My biggest concren is that if I place the componenst across two D.C is that even a supported model. I don't want the customer to deploy an unsupported model . Please recommed the right architecture. I have attcahed the arch diagram & blade mapping as well

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