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Conference ilbbak::ibi_focus

Title:FOCUS, from INFORMATION BUILDERS
Moderator:ZAYIUS::BROUILLETTE
Created:Thu Feb 19 1987
Last Modified:Mon May 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:615
Total number of notes:1779

520.0. "I/O Performance" by MEO78B::SHALLUE () Thu Jun 18 1992 22:36

    We are in a competitive situation with FOCUS on VAX versus FOCUS on
    Hitachi Data Systems.
    
    The HDS people are telling the customer that I/O performance of FOCUS
    on VAX is poor compared to performance on 'equivalent' HDS system. The
    customer is concerned. (HDS is the encumbent)
    
    Before we follow up with IBI, does anyone here have any insights into
    the truth or otherwise of this broad generalisation.
    
    Peter
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520.1EVTDD1::CARRIEREJean-Claude CarriereMon Jun 22 1992 04:355
	Sounds like a very broad statement ...! Probably isn't based on
	any real background informations.

	What is exactly an HDS system (Unix, TSO or MVS clone, ... ) ?
520.2HDS = IBM plug compatibleMEO78B::SHALLUEWed Jun 24 1992 02:118
    Hitachi Data Systems is the company that took over NAS. They sell IBM
    plug compatible mainframes.
    
    We are competing with a IBM Group 29 or 30 Plug Compatible Mainframe
    running the VM operating system.
    
    
    Peter
520.3VAX I/O sub-systemEVTDD1::CARRIEREJean-Claude CarriereThu Jun 25 1992 12:5510
	Similar broad statement regarding VAX FOCUS versus IBM FOCUS
	have been made in the past. The truth is that FOCUS I/O
	subsystem has been re-written in VAX-FOCUS (since the first
	versions) to take advantages as much as possible of the
	feature inherent to a particular plateform.

	Therefore if the argument is FOCUS was initially written on
	IBM, therefore its I/O subsystem is more performant on this
	plateform, well ... that ain't true...