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What are BDAM files

 
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shchan

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Joined: 06 Jun 2007
Posts: 58
Location: Hyderabad

PostPosted: Tue Jan 22, 2008 3:08 pm    Post subject: What are BDAM files
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Can any one help:
What are BDAM files??
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superk

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Joined: 26 Apr 2004
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Location: Raleigh, NC, USA

PostPosted: Tue Jan 22, 2008 3:23 pm    Post subject: Reply to: BDAM files
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Basic Direct Access Method.
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shchan

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Location: Hyderabad

PostPosted: Tue Jan 22, 2008 4:44 pm    Post subject:
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Thanx kevin.
can u help me with some manual on these files??
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murmohk1

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Joined: 29 Jun 2006
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Location: Bangalore,India

PostPosted: Tue Jan 22, 2008 4:47 pm    Post subject:
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Quote:
can u help me with some manual on these files??

Did you go thru the Kevin's link?
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Mistermind
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Joined: 08 Feb 2008
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PostPosted: Sun Mar 16, 2008 1:48 am    Post subject:
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BDAM is used for maximum speed of access.

Basic because it is not even queued. It is synchronous I/O, read/write is performed in sequence with user CPU insturctions, no read-ahead, no overlap queuing for write later. It is not even buffered, reading one record at a time.

Direct addressing for speed, using track and record count. It needs to be allocated via ISPF using a special parameter. Unless you have inherited a BDAM file and legacy code, no point using BDAM.
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