1 HPSSQ, A Software Facility To Handle HPSS Downtime and WAN Data Transfer

To improve the reliability of user access to the High Performance Storage System (HPSS) and to remedy problems associated with relatively low Wide-Area Network (WAN) transfer rates during data transfer between supercomputers and HPSS installations remote from one another, a software facility- HPSSQ- has been developed in the Computer Science and Mathematics Division at Oak Ridge National Laboratory (ORNL). This paper describes the architecture, structure, and major features of this software. The test results of this facility on an IBM SP3 Supercomputer Eagle are also reported