[add Andy Hass ...]
Hi David, Booker,
I mounted the xrootd space of the proof cluster at /xrootd/proof on atlint01. It looks like we have ~1.8TB total on the cluster. So something ~ 1TB should work.
The cluster should be able to access T2 storage if your provide the URL of those root file to process. But the whole idea of using proof is to avoid network traffic as much as possible. As we are still validation the functions, it would be good to try both. Or if you put half of the data on proof cluster, and leave the other half on T2 storage (no NFS please).
The proof master node is boer0123. If you copy files to the cluster, the xroot URL is root://boer0123//atlas/proof (I suggest you to create a fizisist sub-dir).
Booker, it looks like proof also leaves some file in the cluster. How would you suggest to manage the space, by user, by group, or something else?
regards,
Wei Yang |
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| 650-926-3338(O)
On Apr 21, 2010, at 8:40 AM, David W. Miller wrote:
Hi Booker and Wei,
I have a few questions: from what machine do we launch the jobs? Any machine at SLAC, but specifying the URI correctly? Also, if the data are on atlasuserdisk or usr in /xrootd/atlas/ is that sufficient?
Thanks,
David
On Apr 21, 2010, at 17:36 PM, Ariel Schwartzman wrote:
From: Booker Bense <[log in to unmask]>
Date: April 21, 2010 16:09:51 PM GMT+02:00
To: "Schwartzman, Ariel G."
<[log in to unmask]>
Cc: "Yang, Wei"
<[log in to unmask]>
Subject: Re: Proof cluster ready for testing
On Wed, 21 Apr 2010, Ariel Schwartzman wrote:
Hi Booker,
I cannot access this machine remotely:
ssh -Y boer0123.slac.stanford.edu
ssh: connect to host boer0123.slac.stanford.edu port 22: Operation timed out
It's on the slac internal network, you'll need to login to a slac
machine and run root programs from there. You shouldn't need
login access to the master node.
_ Booker C. Bense
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David W. Miller
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SLAC
Stanford University
Department of Physics
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