DEMYSTIFYING MULTICLOUD

Over the years businesses have adopted technologies to make things simpler, faster, and accurate and have designed their own “Digital Transformation” journey Cloud Computing is one such concept and has evolved in last decade.It has gone through enormous transformation and continues to evolve with its rise in adoption and complexity.

“Public Cloud ” was its first avatar where workloads shifted to an infrastructure owned by third party cloud provider. But faced lot of apprehensions and concerns and also had to face many regulatory issues. Customers were not confident in moving to public cloud, That gave rise to a thought to have a “Private Cloud” . It is a setup where workloads remained on premise, but deployed as a cloud. Later, simultaneous use of both public cloud and private cloud started gaining popularity where non-critical workload moved to public cloud and critical one remained on-premise. That was the “Hybrid Cloud”.

However, over the years, more cloud providers started offering their various compelling services and companies too wanted to de-risk from relying only on one vendor. So they started distributing workloads over multiple clouds. This was the emergence of “MULTI-CLOUD” In simple terms, multi-cloud strategy is adopting a deployment model using two or more service providers, and sharing workloads among them to gain maximum benefits.

KEY BENEFITS

Some of the key benefits of adopting multi-cloud are :

Cost optimisation
Flexibility to choose best of the services based on performance and cost benefits
Avoid vendor lock-in
Improved performance
Improved redundancy and reliability

However, adopting multi-cloud has its own challenges. One has to consider all these challenges at the time of assessment and planning stage.

CHALLENGES TO CONSIDER

Availability of talent
Security risks increase because of its distributed nature
Tracking inventory and cost control
Management complexity
May loose out on provider specific perks offered only for those who prefer single provider
Interoperability between the clouds
Adherence to compliances like HIPAA, SOX etc
Each provider has own SLAs. Fixing issues and accountability is a challenge.

MITIGATION

Because of its complex and distributed nature, mitigating risks to multi-cloud requires a holistic approach

Some of the steps to mitigate are :

Choose right providers and services right at the planning stage itself.
Use vendor agonistic tools
Develop a common centralised authentication and authorisation framework
Adopt AI/ML based tools to simplify monitoring and take proactive remedial measures. Automate as much as possible
Consistent security policies, authentication and authorisation framework across the cloud and customise depending on specific needs of specific services, applications.
Avoid / minimise standalone point solutions with proprietary tech
Simplify, streamline operations across the clouds.
Automate upgrades and patches to address various vulnerabilities. Automate audit compliance
Adopt DevSecOps
Adopt applications and infrastructure hardening
Deploy monitoring tools which provide consolidated visibility.
Store sensitive data on most secure storage and distribute over other geographical locations
Adoption of Zero trust architecture, SIEM tools, SASE framework, SSPM (for SaaS), CSPM, Cybersecurity Mesh, ABAC, containerisation could be some of the steps to explore.
Plan for resilience

If done right, multi-cloud deployment unlocks the true potential of cloud in large scale setup.

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DEMYSTIFYING MULTICLOUD