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<p>Dear all,</p>
<p>At the last IGS workshop at the IC+DC splinter meeting we
approved the recommendation ... <br>
</p>
<p><span style="font-size: 12.000000pt; font-family: 'Calibri';
font-weight: 700">2018-4. </span><span style="font-size:
12.000000pt; font-family: 'Calibri'">To coordinate DC, IC and NC
so as to move away from Z compression for all IGS files
(data and products) and into using gzip (.gz)</span></p>
<p><br>
</p>
<p>Please provide us comments on the following;</p>
<p>1) I propose that we announce this change now with the date 01
June 2019 , and at that point we publish all the newly submitted
files (data and products) as .gz in all IGS DCs, whether the owner
submits it that way or not ... do you agree that DCs should
enforce such a change or should we insist all the owners
transition their own submitted files? <br>
</p>
<p><br>
</p>
<p>2) Do we change all the historical files to .gz ? This will
generate "new files" which the myriad of sync processes (private
and public) running between all sort of servers will cause a lot
of duplications ... I propose we leave the old files as they are
for now to avoid a lot of potential duplication of files in IGS
and user's servers <br>
</p>
<p>3) are you aware of specific places were the .Z compression is
requested? required? recommended? ... I think the site guidelines
are generic enough, what do you think?<br>
</p>
<p><br>
</p>
<p>We have some other recommendations to discuss with you in the
next few days, and in the next months I will organize a telecon so
we can all agree a way forward for each one.</p>
<p>Please let us know your comments on this specific recommendation
and I will collate all the discussion points for the coordination
telecon. Thanks.<br>
</p>
<p> </p>
<pre class="moz-signature" cols="72">--
Best regards,
Nacho
_______________________________________________________________
Ignacio (Nacho) Romero
Aerospace Engineer, PhD
CSC Ltd @ ESA/ESOC/OPS-GN
Satellite Navigation Engineer @ ESOC Navigation Support Office
IGS Infrastructure Committee Chair
<a class="moz-txt-link-abbreviated" href="http://www.navigation-office.esa.int">www.navigation-office.esa.int</a>
<a class="moz-txt-link-abbreviated" href="http://www.canaryspaceconsulting.co.uk">www.canaryspaceconsulting.co.uk</a>
_______________________________________________________________
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