MagentaCLOUD + T-Systems: Building a 2.2M User Nextcloud

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Mar 7, 2024

In this discussion, Bernd Rederlechner, Principal Lead Cloud Architect at T-Systems and a veteran of Deutsche Telekom, reveals how he led the successful migration to Nextcloud for MagentaCLOUD, now serving 2.2 million users. He shares insights into the technical challenges faced, including the significant rewrite of the S3 driver for better performance. Bernd highlights the importance of collaboration with Nextcloud engineers and how open-source innovation has been critical to their success. He also discusses the future of cloud technologies and AI's role in architecture decisions.

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ANECDOTE

How MagentaCLOUD Migrated To Nextcloud

Bernd describes MagentaCLOUD’s origin as Deutsche Telekom’s product that began as a self-built solution and later shifted to external providers.
He recounts the migration decision driven by storage cost and operational inefficiency, leading to choosing Nextcloud and moving multi-petabyte data over the network.

INSIGHT

Scale Revealed Hidden System Limits

The deployed scale is massive: 2.2 million active users, 3.5 billion files and 7.2 petabytes of data.
This single large installation exposed scaling issues that smaller deployments never encounter.

ANECDOTE

Rewriting The S3 Driver Under Pressure

Bernd recounts partnering tightly with Nextcloud engineers and rewriting the S3 driver in six weeks to avoid massive fragmentation during migration.
He says their changes like upload optimizations were later included in Nextcloud releases and improved performance for many users.

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One of the most impressive Nextcloud deployments is certainly Deutsche Telekom’s MagentaCLOUD: currently serving 2.2 million active users storing 3.5 billion files, and totaling a massive 7.2 petabytes of data! This makes it among the largest Nextcloud deployments in the world.

The Nextcloud + MagentaCLOUD relationship stems from T-Systems and their very large, successful migration to Nextcloud in 2020, where the data of millions of users was migrated from their old system to Nextcloud.

Our guest today on the Nextcloud Podcast – Bernd Rederlechner, Principal Lead Cloud Architect Emerging Industries at T-Systems – tells the story of how Nextcloud became the solution of choice for migrating their collaborative cloud offering, and how every Nextcloud deployment is benefiting from the technical partnership between Nextcloud and T-Systems.

“Our relationship with Nextcloud fostered a lot of good things – I had never before a partner who, in a crisis situation, stands by your side and takes active responsibility. This makes the relationship between Nextcloud and T-Systems very special, because it’s a relationship built on trust…”
– Bernd Rederlechner

Bernd shares how Nextcloud’s open source nature was new to them and now plays critical role in Deutsche Telekom’s success with MagentaCLOUD, how the S3 drivers were improved to accommodate the requirements of their deployment, some very specific praise for Nextcloud engineers, and the potential future for this self-healing, auto-scaling, Euro-sovereign Nextcloud success.

Episode Links

The post MagentaCLOUD + T-Systems: Building a 2.2M User Nextcloud appeared first on Nextcloud.

MagentaCLOUD + T-Systems: Building a 2.2M User Nextcloud

How MagentaCLOUD Migrated To Nextcloud

Scale Revealed Hidden System Limits

Rewriting The S3 Driver Under Pressure

T-Systems at Enterprise Day

Episode Links