Re: Reprocessing procedure and timing

From: JJ Kavelaars <jjk_at_hia-iha.nrc-cnrc.gc.ca>
Date: Thu, 14 Feb 2008 16:06:55 -0800

> One question for CADC: we could start the reprocessing on 07A and
> uploading to CADC tomorrow/next week, but do we want to replace old
> files yet?

Well.. If you are not 100% certain that this is a straight replace,
then we best not remove the old stuff just yet.

> Since time is of the essence and download time is the
> limiting factor, I recommend we move on with the reprocessing of
> the LS asap for 07A, then 06B, then 07B. My feel is that it'll
> take more than the small test set to really validate this Elixir
> B4 release and having 06B/07A/07B at Terapix through CADC would be a
> good thing.

OK. So, how much space is needed for this 'flow through' from CFHT-
>CADC->Terapix? We could makeup something pretty quickly that would
handle this problem but we have to be careful with storage issues. If
the total space requirement [for LS 06B/07A/07B ] is less then ~ 10TB
we are likely fine.. if the value is up at 20 or so, then we will need
to deploy some additional storage and currently we are not planning to
schedule that until mid April.


JCC: Can you estimate how much storage is needed? I'm really not
very comfortable with removed the current ELIXIR data from the
archive... certainly not until we are completely comfortable that the
the new stuff is correct.

JJ
Received on Thu Feb 14 2008 - 14:07:26 HST