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Conference turris::microvax

Title:MicroVAX, VAXstation, VAX 4000 Systems
Moderator:QUARK::LIONEL
Created:Fri Jan 03 1986
Last Modified:Fri May 30 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4370
Total number of notes:18956

4343.0. "MV3100 hang when backup to TLZ06" by ZPOVC::DAIVC::HERU () Wed Jan 22 1997 21:20

T.RTitleUserPersonal
Name
DateLines
4343.1PROXY::J_EVANSThu Jan 23 1997 08:525
4343.2Error log ? Crash dump ? External cabling ?BBPBV1::WALLACEjohn wallace @ bbp. +44 860 675093Fri Jan 24 1997 08:5111
    Is anything interesting in the error log ?
    
    Are you able to force a crash dump from console mode when the machine
    is hung ?
    
    If you're not using the TK50, remove it, terminate the bus at the
    system unit, and see if the behaviour is the same. If you are using it,
    live without it for a while? 
    
    regards
    john
4343.3More info needed...CRLRFR::BLUNTSat Jan 25 1997 19:3011
    
    What are the EXACT commands that they are issuing to perform the
    Backup?  Has their disk been Analyzed recently?  Do they have either
    DECps or a defragger tool available on the system?  Has the customer
    taken a look at a $DUMP/FOR/HEAD/BLOCK=COUNT=0 FILENAME.EXT?  Are they
    "forcing" a crash when the system hangs?  If not, they probably should,
    and then get a copy of the crash dump on tape for evaluation.
    I recall a problem with EXTREMELY fragmented disks a long time ago
    (something around V3 of VMS) that failed in just the same way.
    
    bob
4343.4Additional Checks...XDELTA::HOFFMANSteve, OpenVMS EngineeringMon Jan 27 1997 11:1016
    
    In addition to the other questions and the requests for copies of a
    crashdump taken during the hang...
    
    How long is the DAT tape?  (The TLZ06 works with DAT tapes of lengths
    no longer than 90M, maximum.)
    
    I'll assume you've reviewed the minimum BACKUP quotas listed in the
    System Management manual.  (The list of quotas in .0 is incomplete,
    and a few of the values shown in .0 are lower than recommended...)
    
    You'll also want to look for pagefile warning messages and any other
    messages that might appear on the system console or in the error log
    during the hang, and you'll want to consider an AUTOGEN with FEEDBACK,
    after cleaning out any cruft in MODPARAMS.
    
4343.5misinformation problemZPOVC::DAIVC::HERUSun Feb 02 1997 22:0417
    
 Hello Team ...

 Thank you for your replys to my problem. Just the moment I got an information from
 my customer that their machine was not hang when doing backup (all user still can access),
 but the DAT drive's LED blinking for very long time (more than the time needed for -
 +/- 800000 block). In this situation, the user couldn't cancel backup process, so they
 need to restart the system. I am sorry for misinformation.
 I have already delivered the external DAT drive TLZ06-DA to my customer for temporrary
 action, until they send the e-mail for detail information.
 I will inform you  in this topic for the next progress if there is an interresting log.
    
 Regards,
                                                                  
 Heru::daivc
 
4343.6Still Need Info...XDELTA::HOFFMANSteve, OpenVMS EngineeringMon Feb 03 1997 10:5138
   We still need the BACKUP commands and the other requested info...

   How did the customer attempt to stop the process?  Did the customer
   attempt <CTRL/Y>, or STOP/ID, etc?

   When the customer restarted the system, did they take a crash dump?
   (If not -- when they next find themselves in this state -- please
   show them how to take a crash dump...)

   Note 4343.5 reformatted to 80 columns...

:                    <<< Note 4343.5 by ZPOVC::DAIVC::HERU >>>
:                          -< misinformation problem >-
:
:
:    
: Hello Team ...
:
: Thank you for your replys to my problem. Just the moment I got an 
: information from my customer that their machine was not hang when
: doing backup (all user still can access), but the DAT drive's LED
: blinking for very long time (more than the time needed for +/- 800000
: block). In this situation, the user couldn't cancel backup process,
: so they need to restart the system. I am sorry for misinformation.
:
: I have already delivered the external DAT drive TLZ06-DA to my
: customer for temporrary action, until they send the e-mail for detail
: information. 
:
: I will inform you  in this topic for the next progress if there is an
: interresting log.
:    
: Regards,
:                                                                  
: Heru::daivc