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How Does Alfesco store file version data

Question asked by hsturner on Feb 25, 2014
Latest reply on Oct 7, 2015 by huarte
Hi Guys,

We want to make sure we have enough storage capacity in the database(?) to store the files and the versions of the file.  My question is how does Alfresco store the previous versions. Does it store a whole file for each version or only what's changed between versions.  It's not much of a concern on smaller documents which are kilobytes in size, but we have some video authors that have files 4 + GB in size and may go through 20 revisions before final edit. This could easily eat up our storage in a hurray.