GridMarkets operates a "fair use" policy under our hourly pricing plan, and allows up to 1Tb of storage to be kept in Envoy for 15 days as long as there is activity on a project - i.e. jobs are run and output is generated. However, project files will be purged from the render nodes after 3 days of inactivity. Therefore, if you run any job on a project that has been deleted from the render nodes then the files will need to be re-syched from Envoy which may take some time. We'd therefore strongly advise to delete any files from Envoy that are no longer needed, such as old inputs or results that have already been downloaded, to reduce your job start times.