L280 Libraries Issue - SCSI Transport Error

From: Bhavesh Shah (bshah_at_citadon.com)
Date: 09/28/05

  • Next message: Bhavesh Shah: "UPDATE: L280 Libraries Issue - SCSI Transport Error" 
    Date: Tue, 27 Sep 2005 15:06:11 -0700
To: <sunmanagers@sunmanagers.org>

    Hi Gurus,
    I have Netra T105 with PCI SCSI Differential controller (symbios logic)
    where two L280 Tape Libraries are attached. From past week or so I am
    getting intermittent errors and my backup keeps failing. In
    /var/adm/messages I am getting errors "SCSI transport failed: reason
    'incomplete': giving up" and am unable to see the tape Drive(Drive is
    missing). I thaught it might be a loose Cable connection or
    terminatior/cable issue. So I tried to reseat the terminator/tried
    replacing the cable/terminator did not help. I am running Solaris 8
    (108528-23).
    I did iostat -E and found following:

    st7 Soft Errors: 0 Hard Errors: 0 Transport Errors: 241
    Vendor: QUANTUM Product: DLT7000 Revision: 2150 Serial No: qP
    st18 Soft Errors: 18 Hard Errors: 1133 Transport Errors: 87
    Vendor: QUANTUM Product: DLT7000 Revision: 2150 Serial No: qP

    Both the Tape libraries are almost new just 3 Months old. Am I missing
    some patches/parameters? Is this L280 issue? Or the issue is related to
    Bad HBA/Libraries? Both libraries are behaving the same way so I am kind
    of not suspecting tape libraries. Any help/Pointer will be greatly
    appreciated
    TIA
    B
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