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Conference decwet::windows-nt

Title:Windows NT
Notice:See note 15.0 for HCL location
Moderator:TARKIN::LIN.com::FOLEY
Created:Thu Oct 31 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6086
Total number of notes:31449

5877.0. " Backup Exec 6.11 (NT4.0) fails with Sony SDT 7000 drive" by OSLLAV::BJARNEC_P (The last boat left without me .....) Fri Apr 04 1997 07:40

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Note 3714.0   Backup Exec 6.11 (NT4.0) fails to Sony SDT 7000 drive   No replies
OSLLAV::BJARNEC_P "The last boat left without me .." 51 lines   4-APR-1997 16:29
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    *** Xposted in Windows-NT notes conf *** ....
    
    
    Hi,
    
    Hope someone can help with this one ...
    
    Prioris XL 5200
    Sony SDT 7000 tape drive (= TLZ09?) - internal drive
    Windows NT 4.0-SP2 Server (no Hotfixes)
    Backup Exec 6.11, build 184
    Sony SDT 7000 tape driver for NT/Intel
    
    Backup Exec fails intermittently, that is; it almost always fails (9
    out of 10 times ....) but not always at same stage of backup.  Fails
    both when backing up with HW or SW compression.  Backup without
    compression enabled completes, no problem!
    
    
    Error message in Event Viewer:
    
    -> Source: Backup Exec 6.11.   The device \device\tape0 has a bad block
    
    -> (in backup log file "Bad data, tape ... has a bad block).
    
    
    I have had him test Windows NT Backup, too.  NT Backup succeeds with HW
    compression enabled (have not tested without HW compression)!!!
    
    The customer has also tried a couple of other things, without any
    better result:
    
    -> He set SCSI transfer rate from 10MB to 5MB
    -> ---"-----   Sync Negotiation from YES to NO
    
    
    Questions:
    ---------
    
    - Has anyone else seen this problem?  
    - Is it a bug in Backup Exec? 
    - Is there a fix? 
    - Should we ask the customer to change to change to some other Backup
      application?
    
    All help very much appreciated!!!
    
    Cheers,
    
    	Bjarne Christensen, CSC, Oslo :-)
T.RTitleUserPersonal
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5877.1TAPE::PETERSFri Apr 04 1997 09:067
	First find out if it is a SDT-7000 or a DEC TLZ09. If it is a TLZ09
submit an IPMT. We are currently working on a problem that may be related.
My "GUESS" is it's a drive hardware problem.


			Steve P.
5877.2Correct guess! HW problem.OSLLAV::BJARNEC_PThe last boat left without me .....Mon Apr 14 1997 02:2711
    Steve,
    
    Thanks for replying to my note!!  Spot on with your guess, b.t.w. 
    I was away last week, but has been informed that BackupExec (and 
    also later NT backup!!!) failed due to a HW problem with the tape 
    drive.  After changing the drive both BackupExec and NT Backup 
    completed without an error message.
    
    Thanks!
    
    	Bjarne :-)