[May 29th, 2020] Update 12: A new Oracle Cloud Region added in Chuncheon, South Korea
[April 30th, 2020] Update 11: A new Oracle Cloud Region added in Hyderabad, India
[March 1st, 2020] Update 10: A new Oracle Cloud Region added in Montreal, Canada
[Feb 1st, 2020] Update 9: 3 new Oracle Cloud Regions added in Melbourne(Australia Southeast), Jeddah(Saudi Arabia West), Amsterdam(Netherlands Northwest)
[Jan 24th, 2020] Update 8: A new Oracle Cloud Region added in Osaka, Japan
[Aug 30th, 2019] Update 7: A new Oracle Cloud Region added in Sydney, Australia
[Aug 23rd, 2019] Update 6: A new Oracle Cloud Region added in Sao Paulo, Brazil
[Aug 2nd, 2019] Update 5: A new Oracle Cloud Region added in Zurich, Switzerland
[July 26th, 2019] Update 4: A new Oracle Cloud Region added in Mumbai, India
[May 13th, 2019] Update 3: A new Oracle Cloud Region added in Seoul, South Korea
[Apr 30th, 2019] Update 2: Oracle added new OCI Region in Tokyo, Japan
[Jan 17th, 2019] Update 1: Oracle added new OIC Region in Toronto, Canada
New Region Added: Chuncheon, South Korea
[Updated on May 29th,2020]
Oracle has announced the availability of a new Region in which you have 1 Availability Domain (AD)
What is Region
- Oracle Cloud Infrastructure (OCI) Servers & Data is hosted in a Region.
- There is a total of 18 Region now (i.e. London, Sao Paulo, Frankfurt, Ashburn, Phoenix, Canada, Tokyo, Seoul, Mumbai, Zurich, Sydney, Osaka, Melbourne, Jeddah, Amsterdam, Montreal, Hyderabad, Chuncheon).
- Every Region can have up to 3 Availability Domain. The first 4 regions (London, Ashburn, Pheonix and Frankfurt) have 3 ADs while all the new regions have 1 AD each.
- OCI services are Global (IAM), Regional (VCN, Object Storage) and some are AD Specific (Compute, DB System, Boot/Block Volumes).
- When you create a Cloud Account a Home Region is by default allocated to you, wherein you can subscribe to another region as well.
How to Subscribe To New Region
1. Log in to the Cloud Console, & from the taskbar drop down, click on Manage Region, from there you can subscribe to any Region you want.
Note: As of March 2020 if you are using a trial account then you can only subscribe to Home Region.
2. Another method is Log into the Console, & from the Navigation menu, under Administration, click Region Management, there you can Subscribe to other Regions
Availability Domain (AD) & Fault Domain (FD)
- Availability Domain (AD) is one or more data centers located within a region. A region is composed of three availability domains.
- A Fault domain is a logical grouping of hardware and infrastructure within an Availability Domain, which Provides a higher degree of protection from unexpected hardware failures or computer hardware maintenance.
How A Region, FD & AD Provides High Availability?
- The region is divided into datacentres which are Availability Domains. ADs are further divided into Fault Domain & FD provides protection against failure within AD. This Process is a an example of High Availability within a Datacentre.
- If you are designing your databases, or VM, or Load Balancer then you will be configuring them within AD but across Fault Domains for High Availability within a Datacenter.
- If a region supports multiple ADs then you are going to deploy them across multiple ADs or you can configure them across Region to avoid any region failures.
To know more about core services in Oracle Cloud Infrastructure check here.
How to Check the Availability Domain
Availability Domain is one or more data centers located within a Region. Every Region can have up to 3 Availability Domains. The first 4 regions (London, Ashburn, Pheonix and Frankfurt) have 3 ADs while all the new regions have 1 AD each.
Once you subscribe to the new region, you can go under Compute & try to create an Instance.
Here, you can see, in this new region you will have only 1 AD
Realm in OCI
A realm is a logical collection of regions. Realms are isolated from each other and do not share any data. Tenancy exists in a single realm and can access regions that belong to the realm. Currently, there are 3 realms in OCI:
- Commercial Realm
- Govt Cloud: FedRAMP (Federal Risk & Authorization Management Program)
- Govt Cloud: IL5 Authorized (Impact Level 5)
Note: Not all services are currently supported in Govt Cloud.
Commercial vs Government Region
There are two types of Regions:
- Commercial
- Government
a) Government Cloud: Is dedicated to Government Organizations only (Federal compliant). Only government companies can access them with proper approvals, and this will be assigned by Oracle.
b) Commercial Cloud: Is not limited to one Organization but it is publicly available.
Note: For the full list of Oracle Cloud Regions including PaaS & IaaS check here
Related/Further Readings
- Oracle Cloud Infrastructure (OCI): Region, AD, FD, Tenancy, Compartment, VCN, IAM, Storage Service
- [Video 3 of 5] Oracle Cloud: Create VCN, Subnet, Firewall (Security List), IGW, DRG: Step By Step
- Data Regions for Platform and Infrastructure Services
Next Task For You
There are 3 levels of OCI Certifications:
- If you are a complete beginner you can go for [1Z0-1085] OCI Foundation.
- If you are already certified then you can go for [1Z0-1072] OCI Architect Associate.
- If you want to take your career to a higher level within OCI then you can go for [1Z0-997] OCI Professional.
Begin your journey towards becoming an Oracle Cloud Infrastructure Foundations 2020 Certified Associate by joining our Training on [1Z0-1085]Oracle Cloud Infrastructure Foundations.
Click on the image below to join FREE Masterclass on [1Z0-1085] OCI Foundations:
FREE Community
The post What is Region, Availability Domain (AD), Fault Domain (FD) & Realm in Oracle Cloud Infrastructure (OCI) appeared first on Oracle Trainings.