Kevin,  

Caveat lector: I'm a newbie to linux-HA, but I think I understand this
one.  

Assuming you're using a recent edition of the crm; I think you can use
the location rule (in configuration) to set the score (chance of being
located somewhere) to 60/primary 40/backup so that it will fail to the
node 'backup', but if the node 'primary' is available, it will be
brought up there instead. With a 0% score on any other nodes, it
wouldn't ever be located elsewhere by the crm.  

Whether that's desirable is your decision.  

-K 


---
Karl Katzke
Systems Analyst II
TAMU - DRGS






>>> Kevin Harms <[email protected]> 5/5/2009 4:32 PM >>>

   In the following documentation:
http://clusterlabs.org/mediawiki/images/7/7d/Configuration_Explained_0.6.pdf
  there is a sub-heading titled "What if Two Nodes Have the Same 
Score" that contains the statement "It would likely have placed 
Webserver based on the node*s uname and Database based on the desire 
to spread the resource load evenly across the cluster."

   I would like to know how the "desire to spread the resource load 
evenly" is determined? I'm trying to setup my cluster so resource will

end up on my "backup" node when a primary node fails.

thanks,
kevin
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