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AFS File System Services

CSAIL uses the AFS distributed file system, maintained by the OpenAFS project.

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. If you do decide to request NFS storage, please see NFS storage for some information we would like you to provide when you make your request.

If you have a CSAIL Ubuntu workstation that is not already configured for NFS access, you can consult the documentation on our Ubuntu Administration page to turn on NFS access for your machine. (Feel free to send mail to if you need any assistance.)

Revision control

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.

See also: Backup options for desktops and laptops?
See also: Data recovery options for desktops and laptops
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Topic revision: 04 Dec 2017, JasonDorfman

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