On Mon, Aug 11, 2003 at 08:49:53AM -0400, Eric Sproul wrote:
> Hi all,
> I noticed something in one of the weekend run reports that I'm curious
> about.  Nothing went wrong, but I noticed a discrepancy between a note
> from planner and what actually happened with a particular DLE.  I guess
> I'm just trying to understand the relationship between planner and the
> actual run.  I thought if planner made a decision regarding the
> incremental level for a DLE, then that's what would happen.
> 
> Apparently that's not the case.  The DLE in question is one of my
> largest ones, just under 20GB.  It is fairly dynamic, so even level 3 or
> 4 incrementals can be several hundred MB.  On Saturday, planner noted
> that the incremental for this DLE would be bumped to level 4.  However,
> checking the detail, I see it got a level 0.  
> 
> This is not a problem, but I just thought I'd inquire as to the
> discrepancy between what planner intended to do and what actually
> happened.  Was a decision made on-the-fly after the run started to go
> ahead and get a level-0?  I thought planner's word was final.

Not sure which program makes the decision, planner or something else,
but what you are seeing is a first check on each DLE and what it needs.
Then after all DLE's are determined individually, a check as to how close
to the average daily run size (tape usage) that comes in total.  If low
by a significant amount, some promotion, as you observed, may be done
to try and achive a long-term balance.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
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