Accession Number:

ADA386192

Title:

A PC-Based Disk Array Subsystem

Descriptive Note:

Final rept. 2 Feb-31 Aug 1995, Phase 1

Corporate Author:

APPLIED TECHNOLOGIES INC BOULDER CO

Personal Author(s):

Report Date:

1995-08-31

Pagination or Media Count:

19.0

Abstract:

Applied Technologies ordered two Pentium computer to begin testing interface boards to determine the data rate throughput between the two computers. It was determined that the Fast Ethernet interface boards throughput limit is just over 2 MBytes per second. The remaining task was to determine the data recording and replay speeds. Applied Technologies provided five, 1 GigaByte SCSI drives for further testing of a RAID 3 configuration. Tests with three RAID system configurations indicated a limitation of 1 MBbyte record and 1 MBbyte playback. It was determined that this limitation was partially due to a shortcoming of the Microsoft NT operating system. By reformatting the controller to accommodate this shortcoming, a final test at a vendors facility indicated a record rate of greater than 5 MBytes per second and a playback rate of greater than 2 MBytes per second. It would appear that the ability to record and playback data at the rate required by the Naval Air Warfare Center is feasible with the NT operating system. The problem outstanding is the input interface limitation.

Subject Categories:

  • Computer Systems
  • Telemetry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE