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Earlier this month, UniSuper found itself in a true nightmare scenario when Google Cloud deleted the account complete with backups belonging to the $135 billion pension fund.

The incident prompted nearly two weeks of confusion and disruption for the Australian firms 600,000+ members, culminating in a public apology from Google Cloud CEO Thomas Kurian.

Google described the incident as an unprecedented sequence of events whereby an inadvertent misconfiguration during provisioning of UniSupers Private Cloud services ultimately resulted in the deletion of UniSupers Private Cloud subscription.

Industry experts have suggested that the incident highlights the importance of keeping and diligently maintaining backups. Theyre certainly not wrong, but on this occasion backups simply werent enough to avert disaster.

UniSuper said it had "duplication in two geographies" as a failsafe against an outage or data loss. However, the deletion of the firms private cloud subscription affected both of these locations as well.

Luckily, the firm said it had backups in place with an additional service provider, which helped minimize data loss.

What this incident points toward is a bigger problem: Lumping all your eggs in one hyperscaler basket.

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UniSuper announced in mid-2023 that it would outsource maintenance of its IT infrastructure to the cloud giant, which isnt out of the ordinary. Companies the world over do this with other major providers such as AWS or Microsoft.

Jamil Ahmed, distinguished engineer at Solace, told ITPro that while choosing a single cloud vendor improves simplicity, the UniSuper incident highlights the growing appeal of a multi-cloud approach.

"One-of-a-kind, extremely rare outages or issues continue to plague every service provider from time to time, which is why the need to store and access valuable information on multiple provider services has arisen, he said.

From a business perspective, Ahmed said there are no excuses for having a single cloud provider in 2024, as this ultimately hamstrings a business into working with one vendor that at any time could encounter a similar problem.

Simply put, he said, a single-vendor approach is a vestige of a bygone era in cloud computing.

It needs to be multi-cloud all the way, treating cloud as a commoditized compute as much as possible, rather than building apps and services that are tied to knowing what cloud they're in.

Unfortunately, when businesses first introduced the cloud into their strategy, about 10 years ago, they made multi-provider usage a problem to solve later on.

It is now 'later on,' and the strategy of using one cloud service is demonstrably dangerous and negligent."

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'Multi-cloud all the way': Why Google Cloud's UniSuper fiasco shows you shouldn't rely on a single cloud provider - ITPro