I'm about to install a new CE and SE (lustre/storm) at Queen Mary.
I'm going to start on the CE. I've read through the YAIM documentation,
but it doesn't really touch on what to do about having two CEs, so I
thought I'd ask here.
Firstly, is there a document floating about on how to have two CEs in
front of the same worker nodes? I've looked on www.gridpp.ac.uk. I've
also looked on google, but my google foo isn't good enough to get
pertinent hits.
Specific issues are:
Ensuring that different users don't get mapped to the same accounts[1].
Can I switch to pool accounts for sgm/prd users on the new CE whilst not
breaking the old setup?
Any gotcha's?
Any other tips (no doubt I'll be back with more questions)?
Chris
[1] It sounds like NFS mounting /etc/gridmapdir is one option.
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