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Conference wrksys::alphastation

Title:Alpha Workstation Conference
Notice:See note 1.* for conference notices
Moderator:WRKSYS::HOUSE
Created:Wed Sep 07 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1996
Total number of notes:9122

1817.0. "Scsi Bus Performance Problem on AS400" by CGOWGS::GIBB (John Gibb Canadian Multi Vendor Support) Fri Jan 24 1997 15:21

    Hello,

    Xposted in NTAXP...
    
    I am  not sure if this is the proper group for this.  I am working a CLD
    on a Alphastation 400 4/233 running WNT 3.51.

    The initial customer complaint was scsi bus performance and he felt that
    SDTR transfers (Fast SCSI) was not occurring.   I  went to site with our
    scsi bus analyser and determined that SDTR was happening on the disks in
    the system but not happening on the tape drives.

    The  tape  drives  are the DLT4000 by Quantun and a HP DAT drive.    The
    customer  moved  these  tape drives to a Alphastation 600 
    and the SDTR negotiation does occur to the tape drives.
    

    The AS400  was  at ARC version 4.45 and was upgraded to ARC 4.49 with no
    changes.

    The version of  WNT  is  V3.51  with  NO  services  paks installed.  The
    customer only installed the files needed to support the DLT4000.

    
    I am not a  WNT  expert and I was wondering if someone would explain how
    and what drivers are used  under WNT for the tape sub-system.  Also does
    Digital write the drivers for the  Alpha  platforms  or  is this done by
    Microsoft .. Also does or could the ARC console play a role in this?.

    
    We have a 2100 in the office and it is running WNT 4.0. We observed in
    both cases, during console init and during NT booting, SDTR negotiation
    to our tape drive (TLZ06). 
    

    Thanks..

    John Gibb
    
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1817.1Driver will be available in the NT 3.51 CDWRKSYS::SUKUMARWed Jan 29 1997 16:357
    Hi,
    
    On NT3.51 the current service pack is #5. You can download from the
    web (microsoft). Now if the tape is mentioned in the NT3.51 hardware
    compability list, the driver will be included in the NT CD. 
    
    sukumar.