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What the relation between region and bufno?

 
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issac1029
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Joined: 10 Dec 2005
Posts: 159
Topics: 75
PostPosted: Mon Apr 24, 2006 3:35 am    Post subject: What the relation between region and bufno? Reply with quote
Hi all,

I ran a pgm specifying region=1024k,then got s878 and reson-code 10,i searched post,and know that because bufno not enough.I haven't specifed bufno,so the bufno should 5,then I think 1024k is not enough for 5 bufno,am I right?
How to compute 5 bufno need xx k?
And 5 bufno for each open statement?or all the 'open's statement using 5 bufno?
Thanks!
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Bill Dennis
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Joined: 03 Dec 2002
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Location: Iowa, USA
PostPosted: Mon Apr 24, 2006 9:15 am    Post subject: Reply with quote
If you get S878 your BUNFO is too much! Code BUFNO=2 or increase the REGION size. Your program may be using up the region so no space left for buffers!

The buffer size is generally the same as BLKSIZE on your file. Multiply BLKSIZE * 5 to see how much region is used by buffers. Each open file needs buffers.

The remaining REGION is used for your program and control blocks.
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Bill Dennis

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