VMware SDDC Design Considerations - PART One: SDDC Layers

 In the first part of SDDC Design (based on VMware Validated Design Reference Architecture Guide) I want to speak more about VMware Software-Design Data-Center (SDDC) architecture and discussing  requirements and considerations. It's a sensible reason that you always should regard capacity planning, scalability approach, extensibility potential, and disaster recovery plan. Also, there must be a design draft that will answer business needs with intelligent and predictable solutions. Traditionally we called that “Infrastructure as a Service (IaaS)”, and finally SDDC has extended and varied usage of it. This structure included many layers and modules:

• 1.       Physical Layer (Computing, Network, and Storage) that is included servers and other resources for Tenant and Edge services.
• 2.       Virtual Infrastructure Layer: Granting access and assigning control procedures on the physical layer (Hypervisors and SAN Storage) for provisioning and managing tenant virtual machines. Management tasks consist: Management of virtual infra, Cloud, SM, BC Solutions and Security areas will be performed on this layer.
• 3.       Cloud Management Layer: All of the service requests handling are leveraged by this layer and also SM, BC & Security components are related to the CM Layer.
• 4.       Service Management (SM), regardless of IT Infrastructure type, has a key role in service provisioning and request responding. Also, all of the monitoring, log management, and alerting operations belong to this layer.
• 5.       Business Continuity (BC) considerations addition to Disaster Recovery (DR) plan act as an SLA guarantee to make sure your IT resources (Hardware/Virtual/Cloud) are always available and if each interruption happen, there must be another way to make your IT environment online. Every Backup and Replication solutions belong to this section.
• 6.       Security considerations will increase infrastructure consistency and it includes every tool and solution to deal with most of Internal / External threats or attacks. On the other hand, each module and component belong to another layer, require some protective features. So this section is a comprehensive part of SDDC design.

 In the following parts of this post, I will discuss more details of the mentioned layers.