Re: VSAM limits

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Subject: Re: VSAM limits
industrynews@winwholesale.com
Date: Fri Nov 06 2009 - 11:40:59 EST


owner-vse-l@Lehigh.EDU wrote on 11/05/2009 04:27:12 PM:
> Thus, a Shareoption(4) file may not have more than 64511 (64K-1024)
> control areas, and the maximum file size would be 64511 times your
> control area size.

        Yep, 64511 is the number I was talking about earlier in reference 
to the maximum number of CI's in a KSDS index component.

> If you use the maximum control area size for your file of one cylinder,
> define the file as XXL, and reside on 3380, with a CISIZE of 4K, this
> would set a maximum file size of 36.9GB.

        I was unaware of this associated limit on the data component. 
Thanks.  But, I have a 47.8GB XXL dataset at the moment.  Is this because 
I am using a 26K CI size for half-track blocking?

Sincerely,

Dave Clark

WinWholesale Group Services
3110 Kettering Boulevard
Dayton, Ohio  45439  USA
(937) 294-5331


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