On Mon, Nov 05, 2007 at 02:07:17PM -0600, Dustin J. Mitchell wrote:
> On 11/5/07, Chris Hoogendyk <hoogendyk AT bio.umass DOT edu> wrote:
> > The question is, "why does the planner go on about promoting full dumps,
> > when taper already knows there is no tape?"
> 
> Keep in mind that the planner/driver separation is the highest-level
> separation in the Amanda core.  'amdump', the shell script,
> essentially runs
> 
>   planner | driver
> 
> The idea is that the planner can do its estimates while the driver is
> warming up the tape drive and dumping anything in the holding disk.
> the upshot is that planner never finds out that the taper isn't
> working -- it just creates a schedule with "normal" and "degraded"
> settings for each DLE, and leaves it to the driver to decide which to
> use.
> 
> Hope that helps!

An additional comment;
just because there is not tapes does not automatically mean
no full dumps.  Depends on the unreserved holding disk space.

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Jon H. LaBadie                  jon AT jgcomp DOT com
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