# All good things come in threes

- Institution: CERN
- Department: HEP Computing
- Speaker: Jean-Marie de Boer
- Year: 2024
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3004208)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

From the very beginning the sync&share services within the Online Data Services group at SURF have been designed with a view of moving them to a geo-distributed setup for extra resilience. In my talk, I will describe the initial design choices, the preparations and the actual steps taken to move a running service from a single datacenter to three datacenters without as much of one second of downtime. I will also touch on the ongoing challenges and areas where we can still improve..

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## Lectures

1. [All good things come in threes](https://invisiblenetwork.ai/learn/cern/3004208/49dee5cb6c64), 22 min (CERN's player)