University of California, Riverside

Engineering Systems



Backup Policy


All BCoE faculty, staff and students should store files directly on the college file server known as “toaster”, which is normally mapped as your “Z drive”. "Toaster's" operating system takes a snapshot of files on a regular basis (details below).  All files on "toaster" are copied to a backup server twice a week and to tape once a week, this does not include snapshots.  For long term retention, backup data is stored approximately three times a year for up to three years on tape. Files that are excluded from backups are:

  • Any folder or file with “iTunes” in the name.
  • Any folder or subfolder containing a user’s windows profile data:
      •  ie .ntprofile or .ntprofile.V2 or .ntprofile.V5

It should also be noted that:

Computers on the ENGR domain use a windows profile to store a user’s settings which includes favorites, desktop and my documents. Windows attempts to copy these files from the server during login and back to the server during log off. This process is not guaranteed and a windows profile is considered a temporary environment and should not be relied on for backup. Any files that need to be backed up should be stored on toaster directly and not in a user’s profile. It should also be noted that no other files on the local C drive are backed up.

Computers not on the ENGR domain, such as laptops or other special systems are not backed up at all by the system group. Users of these computers will need to contact the systems group to make special arrangements if they need files stored on these computers backed up.

Unless special arrangements have been made, desktops, notebooks, PCs, and research servers are not backed up by systems.  Mapped/mounted volumes of toaster are backed up as described above.

Disaster Recovery:

As described above, all data on "toaster" is copied twice a week to a secondary server at UCR and another offsite server located at UCSD's Super Computer facility.  In the event of a disaster, the most recent data available will be restored. Depending on the timing of the disaster the most recent data maybe only hours old or could be as old as a week.  Secondary and offsite servers do not contain snapshots or any file history (ie previous versions).

Snapshots:

"Toaster's" operating system tracks the differences in files on preset intervals, this process is known as a snapshot.  Snapshots provide the ability to recover previous version of files..  Our snapshot cycle is as follows:

1) Once an hour for 24 hours, at which point they are overwritten by the next hourly snapshot
2) Nightly at midnight for a period of 7 days, at which point they are overwritten by the next nightly snapshot
3) Weekly on Sundays at midnight for a period of 11 weeks, at which point they are overwritten by the next weekly snapshot

 

More Information 

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

College Information

Engineering Systems
Bourns Hall A344/308

E-mail: systems@engr.ucr.edu

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