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Conference wonder::turbolaser

Title:TurboLaser Notesfile - AlphaServer 8200 and 8400 systems
Notice:Welcome to WONDER::TURBOLASER in it's new homeshortly
Moderator:LANDO::DROBNER
Created:Tue Dec 20 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1218
Total number of notes:4645

1165.0. "KZPAA and RDD45 compatibility problem ??" by DECPRG::LUFT () Tue Apr 08 1997 04:14

    Hello,
    
    We have  a problem with KZPAA and new CD ROM RRD45.
    
    We have received upgrade kit for AlphaServer 8400 /440 with 4 CPUs, PCI
    drawer with three KZPSA's and one KZPAA. On KZPAA is just RRD45
    connected.
    
    We cannot boot the VMS 6.2-1H3 CD ROM, it allways end up in mount
    verifications.
    
    Under VMS we also will get a lot of mount verify errors when trying to
    use the CD ROM.
    
    When we changed the RRD45 to old RRD42, everything works fine.
    
    Compatibility problem ??
    
    We have similar problem with RRD45 with build in SCSI controller on
    AlphaServer300, we fixed it by changing SCSI fast = 0. Is it possible
    also on KZPAA ?
    
    Bedrich Luft
T.RTitleUserPersonal
Name		DateLines
1165.1UTOPIE::OETTLhide bug until worst timeTue Apr 08 1997 13:1416
>    We cannot boot the VMS 6.2-1H3 CD ROM, it allways end up in mount
>    verifications.
>
>    Under VMS we also will get a lot of mount verify errors when trying to
>    use the CD ROM.
>    
>    When we changed the RRD45 to old RRD42, everything works fine.
>    
>    Compatibility problem ??

I assume you have a tabletop unit. Did you open it and check if there are
terminators installed just behind the SCSI connector? If yes, remove them.
Be sure your cable length is max. 3 meters.
Do not use the old BC09D-xx cables.

�tzi
1165.2designed to fail ?DECPRG::LUFTTue Apr 08 1997 13:3014
    NO !
    
    We have a build in unit. There is a 2m SCSI cable from KZPAA up to the
    shelf, there is inside a flat SCSI cable on which is just the RRD45
    connected. That's the way it's designed ( I hope ).  It works fine with
    RRD42, RRD43.
    
    But did ANYBODY tried it with RRD45 ? As I said, we've seen similar
    problems with RRD45 on other systems. We cured it by changing to slow
    SCSI. But it's not possible on KZPAA - as far as I know.
    
    any help apreciated.
    
    Bedrich