Using MTL ยป Computation

Backup Services

MTL operates a computer backup service for machines connected to the MTL network, whether they are wired or wireless.

For a machine to be backed up, the following conditions must be generally met:

MTL computing staff routinely backs up the following types of machines:

The following types of machines are NOT backed up:

Currently, there is no automatic way of determining the status of MTL backups.

Some users have requested that certain machines not be backed up.  This must be verified by the research group supervisor who owns the machine, else it will be backed up anyway.

If you need a file or an entire directory restored you need to email problems and let them know the date which you last modified the file or directory, if you do not know the exact date we can restore the last level 0 of the files system in question which will be sometime in the last 30 days.

Backups are run nightly, Tuesday to Saturday starting at midnight and will continue until finished.  Backups are not done on Sundays or Mondays.  Any data that was created on Saturday or Sunday that gets deleted before the Tuesday backup will be lost.  Backups are kept for 30 days before the tapes are written over.  MTL currently runs level 0 archives of the UNIX SYSTEMS ONLY each January, June, and September.

For extra security, it is recommended that MTL users keep a copy of sensitive files on their UNIX home directories as backup.  If you login to the MLTNT domain your Unix home directory is automatically mounted as your Z: drive.  At the present time, UNIX back up is the most reliable of all backup schemes at MTL.

Questions? Please email problems@mtl.mit.edu

Computation

MTL Annual Research Report 2017: View Online