{"guid":"d438e3c6-e6a7-430f-8ce2-1974c2fb6ec0","title":"Geo-redundant Failover with MARS, Now and in Future","subtitle":"Howto Survive Serious Disasters","slug":"froscon2022-2741-geo-redundant_failover_with_mars_now_and_in_future","link":"https://programm.froscon.org/2022/events/2741.html","description":"The Ahrtal flood disaster and a war in Europe will obviously increase requirements on geo-redundancy. OpenSource via MARS can help.\n\nExperiences from 1\u00261 IONOS datacenters running millions of customers and petabytes of data will inform you on current state and on future trends.\n\nThis talk will discuss more possibilties for datacenters, how geo-redundancy can be built and operated, and in long term.\n\nThe Linux kernel module MARS is now replicating more than 10 petabytes over long distances, running on thousands of servers. A future version shall be able to replace iSCSI inside of any geo-redundant datacenter, providing location transparency of /dev/mars/mydata by local handover while the virtual device can stay mounted, in addition to geo-redundant long-distance handover and failover.","original_language":"eng","persons":["Thomas Schöbel-Theuer"],"view_count":75,"promoted":false,"date":"2022-08-20T14:00:00.000+02:00","release_date":"2022-08-20T00:00:00.000+02:00","updated_at":"2026-01-04T22:00:30.455+01:00","tags":["froscon2022","2741","2022","System Administration"],"length":2714,"duration":2714,"thumb_url":"https://static.media.ccc.de/media/events/froscon/2022/2741-d438e3c6-e6a7-430f-8ce2-1974c2fb6ec0.jpg","poster_url":"https://static.media.ccc.de/media/events/froscon/2022/2741-d438e3c6-e6a7-430f-8ce2-1974c2fb6ec0_preview.jpg","timeline_url":"https://static.media.ccc.de/media/events/froscon/2022/2741-d438e3c6-e6a7-430f-8ce2-1974c2fb6ec0.timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/events/froscon/2022/2741-d438e3c6-e6a7-430f-8ce2-1974c2fb6ec0.thumbnails.vtt","frontend_link":"https://media.ccc.de/v/froscon2022-2741-geo-redundant_failover_with_mars_now_and_in_future","url":"https://api.media.ccc.de/public/events/d438e3c6-e6a7-430f-8ce2-1974c2fb6ec0","conference_title":"FrOSCon 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