I'm not aware of any company doing that (I know backblaze does that but at the pod level, not at the datacenter level... because they only have one) You may be

I'm not aware of any company doing that (I know backblaze does that but at the pod level, not at the datacenter level... because they only have one) You may be interested in Tahoe-LAFS though (https://tahoe-lafs.org/trac/tahoe-lafs https://tahoe-lafs.org/trac/tahoe-lafs). It has many good things in it, one of them is that all files get erasure-encoded so that k nodes out of n are needed to restore the file. When you set a node to be a storage provider (such as S3, GCS, ...), then you effectively have erasure encoding over providers: If S3 is down, you can still retrieve your data from the rest of the providers. Some people have actually tried to do it, as described in the first section in (https://tahoe-lafs.org/trac/tahoe-lafs/wiki/TipsTricks https://tahoe-lafs.org/trac/tahoe-lafs/wiki/TipsTricks).