Thanks Gene / Jon

That helps explain it !

I'll get this thing taped eventually !!
-- 
AlanP

On Fri, July 28, 2006 7:37 pm, Jon LaBadie wrote:
> On Fri, Jul 28, 2006 at 07:25:29PM +0100, Alan Pearson wrote:
>>
>> I think I've run into another problem indirectly realted to my earlier
>> issues.
>>
>> I've been trying in vein to get a Level 0 dump of the  machine onto
>> tape.
>>
>> I've told amanda to use SERVER compression, but unfortunatley, amanda
>> planner seem to take the estimates from the client without compression
>> when calculating what it can fit on tape.
>>
>> So in reality, if I go over the uncompressed size of the tape as defined
>> in tape type, then this will never get to tape, even though it may fit
>> on
>> after compression.
>>
>> This is at the planner stage, so Amanda doesn't even dump the system to
>> disk to see what size it really is.
>>
>
> The planner gets the uncompressed size estimate from the client even
> if client-side compression is used.
>
> However in the info file for each DLE is a record of the compressability
> of the last three full-dumps (and last three incrementals).  The
> uncompressed size is then multiplied by this factor to get the final
> size estimate of the dump.
>
> If the actual historical information is missing,
> a compressability of 0.5 is used.
>
> --
> Jon H. LaBadie                  jon AT jgcomp DOT com
>  JG Computing
>  4455 Province Line Road        (609) 252-0159
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>