FhGFS Upgrade Notes: Version 2011.04 to 2012.10 =============================================== This document contains the relevant changes for users who are upgrading from the 2011.04 release series to the 2012.10 release. Clients and servers of 2011.04 and 2012.10 releases are not interoperable and thus cannot be used together in the same file system instance. The storage format has changed with the 2012.10 release. New servers cannot read the former 2011.04 storage format. Separate upgrade tools need to be run to convert existing data to the new storage format without the need for a full backup/restore. See here for upgrade instructions: http://www.fhgfs.com/wiki/ServerUpgrade201210 FhGFS version 2011.04 release config files are compatible with the 2012.10 release. However, as several new options were added to the config files, it is recommended to either remove the old config files or to take a look at the new config files to see the new options. The config file locations/names and the values that need to be set in the config files are still the same as in the 2011.04 release series. A full list of changes is available in the changelog at: http://www.fhgfs.com/release/fhgfs_2012.10/Changelog.txt