Mass archival storage
Ranch, a long-term mass storage solution, has 2 petabytes of online storage for data transfer and capacity for 160 petabytes of offline tape storage. By providing a massive file system for archival purposes, this system serves the HPC and Visualization communities.
Ranch uses Oracle's Sun Storage Archive Manager Filesystem (SAM-FS) for migrating files to/from a tape archival system with a current offline storage capacity of 160 petabytes. Ranch's disk cache is built on 8 Dell MD3600i based arrays, each with 7 MD1200 enclosures attached, so 96 3TB disks in each of the 8 arrays. Ranch's metadata system is built on two Sun 7420 appliances, with 4 disk storage shelves, 4 high speed read cache SSDs, 4 log SSDs, and 88 x 15k 600GB SAS disks. The high-performance SAM-QFS file system stores metadata and data separately, on dedicated devices.
Ranch is appropriate for medium-term storage of input and output datasets for use in HPC and visualization campaigns, and as an extra copy in more comprehensive data management plans. Ranch is not appropriate as the sole storage location for research data management.
In partnership with Oracle.
Please Note: The Ranch system is not backed up or replicated. This means that Ranch contains a single copy, and only a single copy, of your file/s. While lost data due to tape damage is rare, please keep this fact in mind for your data management plans.