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Memory used by VSAM file?

 
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senthilmurugan

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Joined: 19 Feb 2008
Posts: 15
Location: chennai

PostPosted: Fri Feb 03, 2012 12:15 pm    Post subject: Memory used by VSAM file?
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How to find out the memory used by the VSAM file. I can able to see only the allocated space in the IDCAMS LISTCAT ALL command.

Code:
TYPE------CYLINDER
PRI-------------40
SEC-------------10

How can I know the how many CYLINDERS used by my VSAM file currently?
Please help me.
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10255
Location: italy

PostPosted: Fri Feb 03, 2012 12:42 pm    Post subject: Reply to: Memory used by VSAM file?
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Quote:
Memory used by VSAM file?

in IT good terminology is essential to good communication and understanding ...

the term commonly used for this <memory> is usually referred as [dasd]-space with the distinction between allocated and used

real storage is generally used to refer to the <memory> of the mainframe

all You might want to know about VSAM can be found here
http://www.redbooks.ibm.com/abstracts/sg246105.html?Open
and
http://www.redbooks.ibm.com/abstracts/sg246366.html?Open
and
http://www.redbooks.ibm.com/abstracts/sg246983.html?Open

for the whole series of ABCS
search the ibm redbooks url wit ABCS SYSTEM PROGRAMMING

and naturally the IBM DFSMS manuals starting from
http://www-03.ibm.com/systems/z/os/zos/bkserv/index.html

and in the hope that this suggestion will not prevent You from reading and researching the manuals

the percentage of space used can be calculated as ...

( high used RBA / high allocated RBA ) * 100
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