AFS File System Services
CSAIL uses the AFS distributed file system, maintained by the OpenAFS
NFS File System Services
In general, AFS is the recommended filesystem due to its added security and flexibility over NFS, but AFS does not provide high levels of performance in certain access patterns. TIG can provide high performance NFS service where it's needed. Please contact TIG
if you want to arrange to have access to a higher performance network filesystem in addition to the standard AFS storage space. NOTE:
NFS is only accessible from the CSAIL network. Consider using the CSAIL VPN
outside of CSAIL.
Revision control allows you to keep a repository of documents or other files in sync between multiple computers and/or collaborators on a project.
All TIG provided network storage is backed up by default, though exceptions can be made by request. Nightly backups are kept for one week and then merged into weekly sets which in turn are kept for one month and merged into monthly sets. Monthly tapes are kept indefinately though we only guarantee recovery for one year due to changing hardware and software environments (if you ask sweetly we can usually go back a bit further). Additionally AFS and the high-speed NFS have periodic snapshots that are kept online.