Working with arrays of inexpensive EIDE disk drives

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In today's marketplace, the cost per Terabyte of disks with EIDE interfaces is about a third that of disks with SCSI. Hence, three times as many particle physics events could be put online with EIDE. The modern EIDE interface includes many of the performance features that appeared earlier in SCSI. EIDE bus speeds approach 33 Megabytes/s and need only be shared between two disks rather than seven disks. The interal I/O rate of very fast (and expensive) SCSI disks is only 50% greater than EIDE disks. Hence, two EIDE disks whose combined cost is much less than one very fast ... continued below

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228 Kilobytes pages

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Sanders, D.; Riley, C.; Cremaldi, L.; Summers, D. & Petravick, D. January 25, 2000.

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In today's marketplace, the cost per Terabyte of disks with EIDE interfaces is about a third that of disks with SCSI. Hence, three times as many particle physics events could be put online with EIDE. The modern EIDE interface includes many of the performance features that appeared earlier in SCSI. EIDE bus speeds approach 33 Megabytes/s and need only be shared between two disks rather than seven disks. The interal I/O rate of very fast (and expensive) SCSI disks is only 50% greater than EIDE disks. Hence, two EIDE disks whose combined cost is much less than one very fast SCSI disk can actually give more data throughput due to the advantage of multiple spindles and head actuators. The authors explore the use of 12 and 16 Gigabyte EIDE disks with motherboard and PCI bus card interfaces on a number of operating systems and CPUs. These include Red Hat Linux and Windows 95/98 on a Pentium, MacOS and Apple's Rhapsody/NeXT/UNIX on a PowerPC, and Sun Solaris on a UltraSparc 10 workstation.

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228 Kilobytes pages

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  • Computing in High Energy Physics Conference, Chicago, IL (US), 08/31-1998--09/04/1998

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  • Report No.: FERMILAB-Conf--99/212
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 750379
  • Archival Resource Key: ark:/67531/metadc709271

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 25, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 1, 2016, 6:05 p.m.

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Sanders, D.; Riley, C.; Cremaldi, L.; Summers, D. & Petravick, D. Working with arrays of inexpensive EIDE disk drives, article, January 25, 2000; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc709271/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.