On Mon, Jun 21, 2010 at 10:21 AM, Jean-Francois Malouin
<[email protected]> wrote:
> 5hrs is the run time:
>
> Estimate Time (hrs:min)     0:44
> Run Time (hrs:min)          5:36
> Dump Time (hrs:min)         2:50       2:32       0:18
>
> Avg Tp Write Rate (k/s)  51715.5    51345.9    98233.1
>
> USAGE BY TAPE:
>  Label               Time         Size      %    Nb    Nc
>  av48-2_down_Q00033  2:21      884163M  114.5    14    98
>
> it took 2:21 for the taper to write 884163M which is more like
> ~100MBis as the per DLEs stats show. I believe there is an simple
> arithmetic error somewhere...

Actually, the numbers I was looking at were:

On Mon, Jun 21, 2010 at 9:07 AM, Jean-Francois Malouin
<[email protected]> wrote:
> Tape Time (hrs:min)         4:52       4:49       0:02
...
> Avg Tp Write Rate (k/s)  51715.5    51345.9    98233.1
...
>  av48-2_down_Q00033  2:21      884163M  114.5    14    98

And the difference between 4:52 and 2:21 is that the 4:52 is the 2:21
is the sum of the times for individual parts, while the 4:52 is the
sum of the time for each entire dump - thus the 4:52 includes time to
write filemarks and (if necessary, but not in this case) change tapes.

That said, the difference between these two numbers suggests something
is being added twice.  Can you send the trace log from which this was
generated so that I can take a closer look?

Dustin

-- 
Open Source Storage Engineer
http://www.zmanda.com

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