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ABOUT BSAM DEFINITION

 
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issac1029
Intermediate


Joined: 10 Dec 2005
Posts: 159
Topics: 75
PostPosted: Wed Mar 08, 2006 3:18 am    Post subject: ABOUT BSAM DEFINITION Reply with quote
Good afternoon folks:
Q1.
What the character of a bsam file?or how can I define a file for bsam access?

Q2.Does the statement 'start' indicate the using of bsam access mode?

Q3.
Quote:
BSAM buffers obtained at OPEN are below 16MB. Also, if you use the BUILD
macro yourself to build a buffer pool that is associated with a DCB
(pointed to by DCBBUFCB), it must be below 16MB. That doesn't mean you
can't read/write from storage areas above 16MB, create buffers above 16MB,
or issue BSAM services from an RMODE=ANY program. It just makes it a
little "trickier" to get complete VSCR when using BSAM.

That means if I use a program to access a bsam file in the status of open,then this program should load below 16m?

thanks~[/code]
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kolusu
Site Admin
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Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose
PostPosted: Wed Mar 08, 2006 6:37 am    Post subject: Reply with quote
issac1029,


1. Search for BSAM in this manual

http://publib.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/DGT2D420/CCONTENTS?DT=20031205184100


Quote:

2. Does the statement 'start' indicate the using of bsam access mode?


NO . check this link for a detailed explanation of the verb START

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IGY3LR10/6.2.35?DT=20020920180651

Hope this helps...

Cheers

Kolusu
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issac1029
Intermediate


Joined: 10 Dec 2005
Posts: 159
Topics: 75
PostPosted: Thu Mar 09, 2006 12:42 am    Post subject: Reply with quote
Thank you kolusu
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