Data Retention Policy

Microarray data:
Processed microarray data generated by the Genomics Resource Center will be transferred to the user's Central File Storage (CFS) folder as soon as possible. For external users and internal users without CFS accounts, data will be transferred by email, ELF (exchange of large files), or user-provided USB drives. We urge all users save and archive data upon receipt.

Microarray image files are transferred to users only upon written request. In such cases, users need to provide a portable hard drive for the transfer or make sure there is enough space in their CFS folders for the data. Requests for image files should be made when samples are submitted but can be accommodated if received within one month of the completion of the projects.

Both processed microarray data files and microarray image files will be retained by the GRC for six months. For operational purposes, the GRC may retain data beyond six months, but cannot guarantee retrievability after six months. All microarray data will be permanently deleted from GRC computers/servers after one year.

High Throughput Sequencing Data:
Due to the large size and high volume of sequencing data, the GRC has very limited capacity for data retention.

Image files: Updated Illumina software no longer retains image files. Images are analyzed in realtime and immediately deleted by the software. Users therefore do not have the option of requesting image files.

Intermediate analysis files: The standard procedure is to retain the intermediate files at the GRC only during the troubleshooting phase, which is generally less than a month. If users would like a copy of the intermediate analysis files, they must request this when submitting samples AND provide a portable hard drive for the file transfer.

Analyzed data (fastQ and aligned data): This data are delivered to users' CFS folders or designated servers, and will be stored at the GRC for six months. For operational purposes, the GRC may retain data beyond six months, but cannot guarantee retrievability after six months. All sequencing data will be permanently deleted from GRC computers/servers after one year.

Other Data:
All other types of data (realtime PCR, microsatellite genotyping, Bioanalyzer, etc) will be retained at the GRC for one year.