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| WRTHRSH greater than 20? |
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| JAdams |
 Posted: Mon Mar 22, 2004 7:24 am Post subject: WRTHRSH greater than 20? |
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Apprentice
Joined: 11 Jul 2002
Posts: 47
Location: Lakeland, FL
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Does anyone have WRTHRSH set greater than 20?
RMF reports are showing a ton of I/O to the volumes containing my active logs. Our DB2 systems does not do near this amount of I/O. I have the OUTBUFF set to 4000, but my WRTHRSH is still set to the default of 20. I believe this will reduce my I/O and improve performance, but I wanted to know what other folks are doing. According to the manual I can set this up to 256. Any advice would be appreciated.
Thanks,
Jason
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Jason Adams
IBM Certified Specialist MQSeries |
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| zpat |
| Posted: Mon Sep 20, 2021 2:09 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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I have the same question. We are seeing "log buffer pool shortage" warnings so hoping that increasing WRTHRSH would help.
Ours is set to 15. The default is 20 - even this seems low to me.
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Well, I don't think there is any question about it. It can only be attributable to human error. This sort of thing has cropped up before, and it has always been due to human error. |
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| bruce2359 |
| Posted: Mon Sep 20, 2021 3:50 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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| zpat |
| Posted: Tue Sep 21, 2021 4:09 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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COMPLOG=NONE
DEALLCT=0
INBUFF=60
MAXARCH=1000
MAXRTU=2
OFFLOAD=YES
OUTBUFF=4000
TWOACTV=YES
TWOARCH=YES
TWOBSDS=YES
WRTHRSH=15
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Well, I don't think there is any question about it. It can only be attributable to human error. This sort of thing has cropped up before, and it has always been due to human error. |
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