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BUFNI calculation under VSAM for EXTVSAM files.

 
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Guru Bob

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Joined: 31 Jan 2008
Posts: 21
Location: Malaysia

PostPosted: Fri Nov 07, 2008 1:25 pm    Post subject: BUFNI calculation under VSAM for EXTVSAM files.
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I know the formulae for BUFNI calculation for RANDOM pass under normal NON Extended VSAM but this same formuale sometimes gives big numbers (or negative) for extended VSAM files can someone give me some clues please.

BUFNI = Total Index Records – (HURBA / (cisize * CIs per CA) ) + 1

I use this formulae for both but sometimes I get funny values for EXTVSM files any advice please?

We do not use SMB only AMP and LSR.
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expat

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Joined: 14 Mar 2007
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PostPosted: Fri Nov 07, 2008 2:09 pm    Post subject:
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Whether the cluster is extended functionality or not should not affect the results from your calculation.
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Robert Sample

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PostPosted: Fri Nov 07, 2008 5:46 pm    Post subject:
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Perhaps if you provided an example we could provide additional feedback -- like maybe your calculation and the LISTCAT output your calculation is based on?
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