Technical Overview: Oracle Cloud VMware Solution

May 26, 2022

Oracle Cloud VMware Solution (OCVS) was made generally available in August 2020, and since then, it has seen rapid growth in the overall customer adoptions. The OCVS plays a pivotal role in VMware’s Multi-Cloud vision.

In this blog post, I will specifically outline the technical overview of OCVS. This blog post will help you understand the basic constructs, overall use cases, and what it has to offer.

What is OCVS?

OCVS provides a customer-managed, native VMware-based cloud environment hosted in Oracle Cloud Infrastructure (OCI). This allows you to spin up VMware SDDC in the oracle cloud with complete control of your own. The provisioning of VMware SDDC is fully automatic and eliminates the operational overhead required to deploy a new data center. 

A single SDDC consists of VMware vCenter, ESXi Host, vSAN, and NSX-T. It also comes with the VMware HCX that allows you to extend your on-premises data center to the Oracle cloud and offers seamless workload migration to the cloud.

SDDC Bundle Specifications

OCVS offers three SDDC versions that you can select from, and these are listed below

Software Version

vSphere

vSAN

NSX-T

6.5 Update 3

6.5 U3

6.5 U3

3.1.2

6.7 Update 3

6.7 U3

6.5 U3

3.1.2

7.0 Update 2

7.0 U2

7.0 U2

3.1.2

You can spin up an SDDC with a minimum of 3 hosts, and it can scale up to a maximum of 64 hosts. Currently, only a single bare metal type is available, which is BM.DenseIO2.52.

BM.DenseIO2.52 Shape specification

Processor: Intel Xeon Platinum 8167M. Base frequency 2.0 GHz, 2.4 GHz

CPU: 2 CPUs with each running 26 cores

Shape

OCPU

Memory

Local Disk

Max Network Bandwidth

BM.DenseIO2.52

52

768 GB

6.4TB x 8 NVMe SSD Drives, Total 51.2 TB

2 NIC  x 25 GB 

OCVS

Key Terms

Before understanding OCVS, let us level set some of the key terms mentioned in OCVS.

Tenancy

When you sign up for Oracle Cloud Infrastructure, Oracle creates a tenancy for your company, a secure and isolated logical partition for you to create, organize, and administer your cloud services.

Compartment

A tenancy, which can also be known as the “root compartment,” can be sub-divided into additional compartments. Resources that are provisioned must be assigned to a compartment.

Regions and availability domain

When deploying an Oracle Cloud VMware Solution instance, the bare-metal host belongs to a single availability domain. The hosts are spread across fault domains in the availability domain. Regions are a geographical grouping of one or more availability domains.

Realms

Realms are a grouping of regions that are isolated from each other. Oracle Cloud Infrastructure currently offers a commercial realm and two realms for government cloud regions.

Virtual Cloud Network (VCN)

A Virtual Cloud Network defines a network in the Oracle Cloud from an IP and routing perspective. The Virtual Cloud network can span availability domains in a region but not across multiple regions.

Instance

There are Oracle physical and virtual instances. A physical instance describes a physical compute Server. Virtual machines running in the Oracle Cloud VMware Solution are virtual instances.

Shape

A shape describes how much CPU and Memory is assigned to an instance.

Here is a list of all the key terms and terminology you might encounter while working with OCI and OCVS. Key Concepts and Terminology

OCVS SDDC High-Level Architecture

OCVS-SDDC

By default, the OCVS provision workflow deploys all the ESXi hosts in a single availability domain in a region and is distributed across 3 fault domains.

Before you deploy an SDDC, you need to create a VCN network. The size of the VCN subnet depends on the number of ESXi hosts that are part of the SDDC.

For example, For vSphere 6. x, Oracle recommends creating a size /22 CIDR network segment in your VCN for the SDDC’s networking resources.  The SDDC CIDR will be further divided into 7 segments of size /25.

And for vSphere 7.x,  Oracle recommends creating a size /21 CIDR network segment in your VCN for the SDDC’s networking resources. The SDDC CIDR will be further divided into 10 segments of size /25.

The list of provisioned VLANs and their descriptions are as below –

Network Name

Purpose

Provisioning/ Management

The ESXi management interface (vmk0) resides on this subnet.

Replication

Used for the vSphere Replication engine. (VMware version 7.x only)

 

vSphere

This VLAN is used for management components of Oracle Cloud VMware Solution such as vCenter Server, NSX Manager, and NSX Edge.

vMotion

This VLAN is used for VMware vMotion migration of the management and customer workload components.

vSAN

This VLAN is used for vSAN (VMware storage) data traffic.

NSX VTEP

This VLAN is used for data plane traffic between ESXi hosts.

NSX Edge

VTEP This VLAN is used for data plane traffic between the ESXi host and NSX Edge.

NSX Edge Uplink 1

This VLAN is used for communication between the VMware SDDC and Oracle Cloud Infrastructure.

NSX Edge Uplink 2

This VLAN is reserved for future deployment of public-facing applications on the VMware SDDC.

HCX

(Optional) This VLAN is used for HCX traffic. Create it if you plan to enable HCX when you provision the SDDC.

OCVSNW

OCVS Use-Case

There are plenty of compelling reasons for choosing OCVS, but here I am listing some of the use-cases for OCVS.

Migrate or Extend to Cloud

With OCVS backed by VMware HCX, you can easily migrate or extend your workloads to the Oracle cloud. Take a look at this solution playbook to learn more.

DRaaS on OCVS

OCVS provides a disaster recovery solution using VMware Site Recovery Manager (SRM) for seamless business continuity. Take a look at this solution playbook to learn more.

Enable Digital Workspace with VMware Horizon and OCVS

With the ever-increasing remote workspace demand, you can quickly provision a digital workspace on Oracle Cloud with the help of OCVS and VMware Horizon. Check out the details here.

The above use cases are just a few among many, and shortly, I will outline some of the implementation details to help you get started with OCVS.

OCVS Pricing

Please consult with oracle about the exact pricing details, but OCVS is offered as a cloud service; hence customers have different pricing options depending upon their commitment levels.

Pricing Interval

Required Commitment

Notes

Hourly

Hourly pricing requires a minimum of 8 hours of committed host runtime

Use this interval for test projects or short-term high utilization events where extra capacity is required for a very limited time.

Monthly

Monthly pricing requires a minimum of 1 month of committed host runtime.

This interval is a common option and is the default selection.

Yearly

One-year pricing requires a minimum of 1 year of committed host runtime.

Use this interval for long-term projects such as workload or application migration to Oracle Cloud Infrastructure.

Every Three Years

Three-year pricing requires a minimum of 3 years of committed host runtime.

Use this interval for very long-term projects or mission-critical workloads that aren't easily migrated.

 

Getting Started with OCVS 

Here are some resources that will help you get started with the OCVS quickly.

VMware E-Book: Getting Started with Oracle Cloud VMware Solution

Oracle Cloud Documentation                  

OCVS Hands-On Lab

 

Attributes

Steve Dockar, Global Technical Sales Manager, VMware

Jason McKenzie, Member of the Multi-Cloud Center Of Excellence, VMware

Oracle Cloud Documentation

 

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