Data Buffers

["Smith, Nelson" <NSmith@xxxxxxxxxxx>]

Do I remember hearing a few releases back that a change was made to OS/400
Data Management to always check the data buffers for a record before going
to disk to get it?  I know we used to have to flush out the buffers in
certain situations and that doesn't seem to be the case any longer.

I'm writing & updating records to a file with the Force Write Ratio set to
*NONE and then on the next line in the program chaining out to it to see
what the trigger did to certain fields and it works fine.  I was wondering
if this was why it works ok and is this behavior job related. In other
words, is the file buffer part of the job or attached to the file?  If a
program in another job stream was trying to access that same record would it
find it in the buffer also, or only be able to get it from disk?  (I'm
assuming here the record is still in the buffer and has not yet been written
to disk.)

Nelson Smith, CDP, CCP
IBM Certified Specialist
AS400 RPG IV Programmer
(727) 431-8243
(800) 284-2006



************************************************************************************************************************************************************************************************************
This message originates from Lincare Holdings Inc. It contains information 
which maybe confidential or privileged and is intended only for the individual 
or entity named above.
It is prohibited for anyone else to disclose, copy, distribute or use the 
contents of this message.
All personal messages express views solely of the sender, which are not to be 
attributed to Lincare Holdings Inc., and may not be copied or distributed 
without this disclaimer.
If you received this message in error, please notify us immediately at 
MailAdmin@lincare.com or (800) 284-2006.
************************************************************************************************************************************************************************************************************