Berkeley Storage Manager

Software · Thu Mar 01 00:00:00 EST 2007

OSTI ID:1230969

Sim, Alex; Gu, Junmin; Natarajan, Vijaya; Shoshani, Arie

Storage Resource Managers (SRMs) are middleware components whose function is to provide dynamic space allocation and file management of shared storage components on the Grid, They provide storage availability for the planning and execution of a Grid job. SRMs manage two types of resources: space and files. When managing space, SRMs negotiate space allocation with the requesting client, andlor assign default space quotas. When managing files, SRMs allocate space for files, invoke file transfer services to move files into the space. phi files for a certain lifetime, release files upon the clients’ request, and use file replacement policies to optimize the use of the shared space. SPMs can be designed to provide effective sharing of files, by monitoring the activity of shared files, and make dynamic decisions on which files to replace when space is needed. In addition, SRMs perform automatic gathage collection of unused files by removing selected files whose lifetime has expired when space is needed. BeStMan is a Java implementation of SRM functionality by the Scientific Data Management Group at LBNL. It manages multiple disks as well as the HPSS mass storage system, and can be adapted to other storage systems. The BeStMan package contains the SRM server, the SRM client tools, and SRM testing tools.

• Short Name / Acronym: BeStMan; 002063MLTPL00
• Site Accession Number: LBNL CR-2404
• Version: 00
• Programming Language(s): Medium: X; OS: Not Specified; Compatibility: Multiplatform
• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 1230969
• Country of Origin: United States