https://wiki.egi.eu/w/index.php?title=Tools/Manuals/TS127&feed=atom&action=historyTools/Manuals/TS127 - Revision history2024-03-28T23:45:34ZRevision history for this page on the wikiMediaWiki 1.37.1https://wiki.egi.eu/w/index.php?title=Tools/Manuals/TS127&diff=105460&oldid=previmported>Krakow at 11:39, 23 November 20122012-11-23T11:39:44Z<p></p>
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</table>Krakowhttps://wiki.egi.eu/w/index.php?title=Tools/Manuals/TS127&diff=24696&oldid=prevAesch: Created page with '{{TOC_right}} Category:FAQ ------ Back to Administration FAQ ------ = How to set up multiple CEs at one site = There are several possibl…'2011-09-18T08:41:04Z<p>Created page with '{{TOC_right}} <a href="/w/index.php?title=Category:FAQ&action=edit&redlink=1" class="new" title="Category:FAQ (page does not exist)">Category:FAQ</a> ------ Back to <a href="/wiki/Tools/Manuals/AdministrationFaq" title="Tools/Manuals/AdministrationFaq">Administration FAQ</a> ------ = How to set up multiple CEs at one site = There are several possibl…'</p>
<p><b>New page</b></p><div>{{TOC_right}}<br />
[[Category:FAQ]]<br />
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Back to [[Tools/Manuals/AdministrationFaq|Administration FAQ]]<br />
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<br />
= How to set up multiple CEs at one site =<br />
<br />
There are several possible reasons for setting up multiple CEs at one site:<br />
<br />
* load sharing + failover redundancy<br />
* very different hardware on different clusters<br />
* resources located on separate networks<br />
* multiple batch systems in use<br />
* trying out a new version or implementation on a test machine<br />
<br />
With YAIM one would typically give each CE its own <font face="Courier New,Courier">site-info.def</font><br />
with definitions that are appropriate for the batch resources behind the CE.<br />
<br />
Here it is important to prevent double counting of your CPUs in GStat:<br />
for a set of equivalent CEs (sharing the same batch resources) only '''one'''<br />
should publish the true values for <font face="Courier New,Courier">GlueSubClusterPhysicalCPUs</font>,<br />
while the others should publish '''zero'''.<br />
The corresponding YAIM variable is <font face="Courier New,Courier">CE_PHYSCPU</font>.</div>Aesch