College of Engineering |

DECS

DECS offers data storage and backups to all College of Engineering users. These resources can be invaluable in case of hardware failures, recovering data or peace of mind that there is more than one copy of your data. Data is backed up daily, and quickly recoverable.

Network Drives

Over 100 terabytes of networked storage is available to hold data. Engineering users are familiar with the networked storage spaces provided through the use of home, office, research and web space. Using these spaces ensures that your data is backed up regularly, stored in a controlled environment, protected under disaster recovery plans and best of all, available to you from anywhere.

Backups for the network drives stored on the Netapp are completed in two ways: snapshots and tape. Easy restoration of data can be performed by using snapshots. A tape library is used for preserving data on a daily, weekly and monthly basis with tapes stored at on-site and off-site locations.

A snapshot is a read-only copy of the entire file system and all the files on the networked storage spaces. Each one reflects the state of the file system at the time the snapshot was created. Snapshots can be immediately retrieved by users without the need to request a restoration of data from backup tapes. You can navigate through each snapshot as if it were active. Your directories and files will appear as they were at the time that the snapshot was taken. Snapshots are taken every hour on this schedule.

Full backups are completed monthly, incremental backups are done weekly, and differential backups done nightly. All are written to tape and stored according to their retention schedules.

For information on how to use snapshots to restore a file, or to request a file be restored, see the How To: Recover a Lost File.

Storage

Below is a list of possible drives that are available to users for storage:

Home
Everyone has home space. This space is assigned to you when your engineering account is created. This is your personal space and only you have access to it. In the DECS' public computer labs, your home space is mounted as the M: drive. See the Manage Disk Quota How-To for tips on managing your space.
 

 

Office
The office space is available to departmental administrative personnel and is created by a request from a department or unit. The access to this space is controlled through various mechanisms to restrict/allow access to materials or directories in the department networked office space.
 

 

Research
The research space is available to faculty, staff and students. This space is used primarily to provide networked shared space with controlled access to research data. This space is created by a request from a faculty member.
 

 

Web
The Web space is dedicated to users and groups for hosting Websites. This space is allocated independently from a user's personal Web space. Personal Web space is included as part of each user's home space. This space is created by a request from a faculty or staff member.
 

 

Courses

The courses space is available by request from a faculty or staff member each semester for instructional content. The intention is to provide space to deliver course materials and a space for students to work on shared projects together. 

The "Instructors," "Assistants" and main "Shared" directories are preserved between semesters. The Sections directory and all sub-directories are cleared one week after the end of each semester.  Any material in the Sections directory and sub-directories must be moved to a different network drive location in order to be preserved beyond one week after the end of each semester.

 

 

OwnCloud
OwnCloud is a tool provided by DECS to allow groups to exchange files without all members having engineering accounts, but is password protected.  This space is created by a request from a faculty or staff member.
 

 

Scratch

Scratch space is a networked storage location for temporary file storage. This space is intended to temporarily store data that is too large to fit in your home directory. The scratch space is never backed up, and files or directories more than seven days old are deleted. Do not store important files in this location.


This space is available on the all the DECS linux servers as /egr/scratch, and on the DECS Remote Desktop Services servers as the S: drive.

 

 

DFS
DFS (Distributed File System) is a mount point which can be used from Windows to connect to all the above networked storage locations. In the DECS' public computer labs, DFS is mounted as the T: drive.