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	| WRTHRSH greater than 20? | « View previous topic :: View next topic » |  
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		  | Author | Message |  
		  | JAdams | 
			  
				|  Posted: Mon Mar 22, 2004 7:24 am    Post subject: WRTHRSH greater than 20? |   |  |  
		  |  Apprentice
 
 
 Joined: 11 Jul 2002Posts: 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
 _________________
 Jason Adams
 IBM Certified Specialist MQSeries
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		  | zpat | 
			  
				|  Posted: Mon Sep 20, 2021 2:09 am    Post subject: |   |  |  
		  |  Jedi Council
 
 
 Joined: 19 May 2001Posts: 5867
 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.
 _________________
 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: |   |  |  
		  |  Poobah
 
 
 Joined: 05 Jan 2008Posts: 9486
 Location: US: west coast, almost. Otherwise, enroute.
 
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		  | zpat | 
			  
				|  Posted: Tue Sep 21, 2021 4:09 am    Post subject: |   |  |  
		  |  Jedi Council
 
 
 Joined: 19 May 2001Posts: 5867
 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
 _________________
 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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