Data Storage

The JPL Supercomputing and Visualization Facility provides users with ample space for storing their datasets, which can often be very large. These include the user's home directory, the user's work directory, and temporary scratch directories. Users may store their data in the system that best meets their needs.

Storage quotas vary between computer systems and individual accounts. Users may contact us to make arrangements for additional storage space as needed.

Home Directories

Users' home directories are intended primarily for source code and compiled executables. These directories are backed up nightly.

Work Space

We assign each user a work space directory at:

/work??/<projectcode>/<username>

Work space is intended to hold necessary files for the duration of an active project. Work space directories are not backed up, and users should remove their files from the work space directory when their project is no longer active.

Backups

Other than backups of users' home directories to the facility's Nearline storage, users' files are not backed up. Users are responsible for backing up their critical files to their personal storage area, or to their JPL Nearspace storage services. For more information on Nearspace, please visit

http://nearspace.jpl.nasa.gov/

Data Protection

Projects and users are responsible for protecting their data from access by unauthorized persons. This is especially true for all export-controlled (ITAR protected) technical information/data used by the project. If you are unsure whether your project contains export-controlled technical information/data, please contact the Office of Export Compliance at 1-818-393-7790.

The SVF's supercomputing systems use Unix or Unix-like file permissions to protect users' data files. For ITAR-protected projects, these permissions are pre-set for owner and group access only. Frequent scans are performed to ensure compliance. For further information, please contact us at 1-818-393-2729 or scconsult

Longterm Storage Space

Each active project on our systems is given 1 TB of storage space for their programs and data files. Some projects have purchased additional storage space for themselves, and are paying for it separately. For all other projects that need over-quota storage, the rate is $750 per TB per month.

Please note that this rate applies only to active projects on our systems. We define active project as a project that uses at least 6000 CPU-hours per year, fairly evenly spread over the entire year. We do not provide archival storage services, or storage for inactive projects. Inactive projects are expected to use their own storage, or the institutional Nearspace storage services at

http://nearspace.jpl.nasa.gov/

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