Title :
Direct access storage device (DASD) modeling and validation
Author :
Lim, Puay-Koon ; Tien, James M.
Author_Institution :
Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
In a distributed environment where data are distributed and stored in individual DASDs, the performance of each of these DASD subsystems is critical to overall system performance. Hence, in order to size the DASD subsystems within a distributed environment appropriately, a flexible and robust planning tool is needed. A planning tool in the form of a robust simulation-based model is proposed for the performance evaluation of noncached and cached DASD subsystems. It is validated with performance data obtained from a real-world environment. This planning tool is part of an ongoing research project in the development of a four-level distributed information system simulator
Keywords :
digital simulation; distributed processing; magnetic disc storage; performance evaluation; cached subsystems; direct access storage devices; distributed environment; distributed processing; four-level distributed information system simulator; noncached subsystems; performance evaluation; planning tool; Availability; Communication networks; Computer network reliability; Computer networks; Distributed information systems; Hardware; Large-scale systems; Robustness; System performance; Telecommunication network reliability;
Conference_Titel :
Systems, Man and Cybernetics, 1989. Conference Proceedings., IEEE International Conference on
Conference_Location :
Cambridge, MA
DOI :
10.1109/ICSMC.1989.71451
