ATLAS SCCS Planning 23May2007
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9am, SCCS Conf Rm A, to call in +1 510 665 5437, press 1, 3935#
Present: Andy, Booker, Charlie, Stephen, Randy, Richard, JohnB, Wei
Agenda:
1. DQ2 Status/Web Proxy
Running fine, production going very well.
Setup user space, can be accessed via xrootd or NFS. One question
is if we should put it under DQ2 management. Users could just use
the production area and the current DQ2 site services to bring in
data. In the future we might need to set a policy on policy.
Should perhaps just have this area available as xrootd and use the
existing $ATLROOT/work area for things like log files.
For the moment we will not run backups on the xrootd area, but
should discuss it down the road.
Will all ATLAS machines be Linux? Yes. Talking about using FUSE as
an interface to xrootd. An interesting idea but don't know how
stable it is. Expect this to be the case (only Linux) for a few
years at least.
2. Tier-2 Hardware
Lance is still using the third server. He can have it till the new
CPUs are online.
The rails and system can start going into the water cooled
racks. Has not been commissioned yet. Should happen at the end of
week. Can start doing the OS install after coming back from memorial
day. Have had a request to increase production from US ATLAS. There
78 boxes with 4 cores (312 cores), this is two racks. Two weeks
after the physical install will be when they are available. June
15th is probably a reasonable time to expect them to be available.
Could we move some shares to from the atlas-users to atlas-prod to
give production more time. Could also think about if atlas-users
and atlas-prod should be subgroups of an overall atlas
group. Another thing that is going on is removing the hack in the
wrapper that forces jobs to the AllUsers if you don't specify a
group.
Also organising a meeting with stake holders on the 1st June to
discuss things like power and cooling, fairshares, and anything
else that people want to raise. There are groups that have not made
a contribution to the general queues that should get some shares,
groups like radiation physics (doing LCLS work). Have iterated a
little with management. They want to be able to rubberstamp
something that the stake holders have put forward. Would like to
get a common agreement at this meeting.
3. xrootd/srm
No developments in the last week.
Moving this discussion to a new xrootd ATLAS meeting, every
other Thursday, starting next week. This is a general meeting
involved people at other sites.
4. AFS Problems causing jobs to intermittently fail
Nothing to say this week.
5. AOB
Action Items:
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070516 Andy Setup meeting about xrootd collaboration
070523 Not done yet. Would like a list from Stephen of
who should be there.
070509 Stephen Split up top-level AFS volume, requests to unix-admin
070516 Not done yet.
070523 Some requests went in yesterday and have been done. Once
I've move the files I can then request the top level
volumes and the work volume.
070502 Stephen Arrange meeting about ATLAS TAG data on PetaCache
070509 Not done yet.
070516 Not done yet. Did talk a little to David Quarrie.
070523 Not done yet.
070502 Wei Check CA certificate update mechanism
070509 Not done yet but believe VDT is the right way.
070516 Need to talk to Booker and security team to verify.
070523 Verified this was the correct way. Done.
