This post covers the difference between Oracle Cloud Infrastructure Classic (OCI-C) Vs Oracle Cloud Infrastructure (OCI), one of the most common question asked in our Cloud Trainings ( 1Z0-932, DBA to Cloud DBA & EBS (R12) on Cloud (OCI)).
As you probably know, Cloud has three Service Models: IaaS, PaaS, and SaaS (If you are new to Cloud and would like to know more about these Service Models then I highly recommend you to watch my previous live at https://k21academy.com/cloudlive01 ).
Note: Oracle has offerings in all three Service Models and both OCI and OCI-C are from IaaS offerings, where OCI stands for Oracle Cloud Infrastructure and OCI-C stand for Classic Version of IaaS Offering.
(OCI-C) Oracle Cloud Infrastructure Classic (Gen 1) :
- OCI-C is based on Nimbula Director, Xen based Hypervisor which provides Compute & Network (Shared & IP Networks)
- It provides only Virtual Machines (whereas OCI can also provide Bare Metal)
- OCI-C formerly OPC announced at Oracle Open World (OOW) 2014, was renamed to OCI -C at OOW 2017
- It can be deployed as a) Elastic Compute b) Dedicated Compute c) Sparc Model 300
- As of March 2018, OCI-C is available in NAC, EMEA, APAC.
What’s not Available in OCI -C
- Availability Domain (AD) (To know more about Availablity Domin Click here)
- Compartment (To know more about Compartments Click here)
- Virtual Cloud Network (VCN) (To know more about Virtual Cloud Network (VCN) Click here)
- Oracle Bare Metal (BM) (To know more about Bare Metal (BM) Click here)
Note: Oracle has depreciated OCI -C and it is available only for old customers now.
Oracle Cloud Infrastructure (OCI) Gen 2:
- Oracle Cloud Infrastructure (OCI) like OCI-C is also IaaS offering that provides Compute, Network but as Virtual Cloud Network, Availability Domain and additionally Edge Services like Email, DNS, Load Balancer etc (more on Edge Services little later)
- OCI announced in OOW 2017 is re-branding of Bare Metal Cloud Service (BMCS)
- Oracle OCI provides both Bare Metal & Virtual Machines (whereas OCI-C provides only Virtual Machine) [Updated on 15th Mar, Thanks Manjunath for pointing out typo]
- The hypervisor in VM option of OCI is based on KVM (whereas on OCI-C this is Xen based Hypervisor)
- Bring Your Own Hypervisor (BYOH) only available in OCI.
When to Use What
- Cloud@Cusotmer is a subscription-based service where both Hardware & Cloud Software is on Customer Premises, this option as of March 2018 is only available on OCI-C. (To know more about Cloud at Customer (C@C) Click here)
- Oracle Cloud Infrastructure (OCI) now has more region currently compared to OCI -C. (To know more on Region in Oracle Cloud Infrastructure (OCI) Click here)
- High-Performance Compute (HPC), Artificial Intelligence (AI) and Machine Learning (ML) is available only on OCI (as of Mar 2018)
- EBS (R12) & Database both are supported on both OCI & OCI Classic so you can use either
Note: As Oracle has depreciated OCI -C and its only available for old Cloud Customer, I would recommend you to go with Oracle Cloud Infrastructure (OCI).
If you are preparing for Oracle Cloud Architect Exam [1Z0-932], you can expect questions based on this.
Join my FREE Masterclass Oracle Cloud Infrastructure Architect [1Z0-932] WHAT, WHY & HOW TO LEARN.
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