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Can we open file as input then at the same time open as I/O?

 
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lee_issc

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Joined: 11 Dec 2008
Posts: 33
Location: China

PostPosted: Wed Mar 24, 2010 7:44 am    Post subject: Can we open file as input then at the same time open as I/O?
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One program opens a VSAM file as input and is reading the file.
Another program try to open this file as I/O mode at the same time and got a return code '93' which means VSAM resources not available.

Any IBM book describes the dependency of file mode?
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Wed Mar 24, 2010 7:51 am    Post subject:
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Hello,

At the top of the page is a link to "IBM Manuals". Among them is the VSAM Services for DFSMS manual.

Also, here is a link to a Redbook called VSAM Demystified:
http://www.redbooks.ibm.com/abstracts/sg246105.html?Open
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