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Larry,

Check the system value QHSTLOGSIZ.  Prior to V5R4, the default value is
*WAYTOOLOW.  If that reveals nothing, you have to start blowing through
QHST, and I would start with the current day only.

Al

Al Barsa, Jr.
Barsa Consulting Group, LLC

400>390

"i" comes before "p", "x" and "z"
e gads

Our system's had more names than Elizabeth Taylor!

914-251-1234
914-251-9406 fax

http://www.barsaconsulting.com
http://www.taatool.com
http://www.as400connection.com



                                                                           
             Larry Bolhuis                                                 
             <lbolhuis@arbsol.                                             
             com>                                                       To 
             Sent by:                  Midrange Systems Technical          
             midrange-l-bounce         Discussion                          
             s@xxxxxxxxxxxx            <midrange-l@xxxxxxxxxxxx>           
                                                                        cc 
                                                                           
             12/06/2006 04:46                                      Subject 
             PM                        Runaway QHST                        
                                                                           
                                                                           
             Please respond to                                             
             Midrange Systems                                              
                 Technical                                                 
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             <midrange-l@midra                                             
                 nge.com>                                                  
                                                                           
                                                                           




Here's a strange one to watch for.

Customer calls wanting disk moved around on a 520 LPAR. They have gone
from 60(ish) percent full to 90(ish) in the last few weeks and dont'
know why. I get there this morning and am also told 'your backup (I
wrote it for them) also failed the last two Wednesdays can you check
that too?'.  Sure, so I hit DSPLOG starting at 2 AM  After 10 minutes
still input inhibit. Hmmmm. Sysop tells me he quite using DSPLOG because
it takes *WAYTOOLONG. Hmmmmm (again).  WRKOBJPDM QSYS/QHST* blows up
with 'too many objects'. Hmmmmmmm!   DSPOBJD of QHST* and a query shows
187,000 of them totaling 150+GB. Well now there's the disk space they've
been missing!  Oldest file is 30 days old and matches CHGCLNUP values.
Whysomuch? Turns out they had a damaged device description which the
system was trying to vary on, that failed with damage, then it tried to
delete it but the damage made the system think it was already gone, then
it tried to make a new one which failed with 'already there' then it
tried to vary it on which f....  This it did right around 1,500 times
per second, creating a new QHST* file every 2 or 3 seconds. For about
three weeks.  The backup failure turned out to be SAVSYS failing with
too much stuff in QSYS!

  - Larry

ps: They thought the system had been running a tad sluggish as well. :-)


--
Larry Bolhuis                   IBM eServer Certified Systems Expert:
Vice President                    iSeries Technical Solutions V5R3
Arbor Solutions, Inc.             iSeries LPAR Technical Solutions V5R3
1345 Monroe NW Suite 259          iSeries Linux Technical Solutions V5R3
Grand Rapids, MI 49505            iSeries Windows Integration Technical
Solutions V5R3
                                IBM eServer Certified Systems Specialist
(616) 451-2500                    iSeries System Administrator for
OS/400 V5R3
(616) 451-2571 - Fax              AS/400 RPG IV Developer
(616) 260-4746 - Cell             iSeries System Command Operations V5R2

  If you can read this, thank a teacher....and since it's in English,
thank a soldier.

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