ATLAS SCCS Planning Oct 1 (and September), 2008
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9am, SCCS Conf Rm A, to call in +1 510 665 5437, press 1, 3935#
1. Tier-2 Production/Operation
- Low activity during last month in ATLAS Grid production
More Panda jobs expected with a new production release soon to be released.
- There were some issues with user jobs in pAthena having too
small cache size (10 MB) while accessing XROOTD files.
The cache has been increased to 50 MB.
2. Local copy of Oracle CB and/or Proxy for Reconstruction jobs
- SLAC has set up a solaris machine to host local copy of Oracle CB,
but neither BNL or CERN is willing to provide distribution streams.
It will require a management decision.
- Secure Proxy downloading of conditions from Oracle DB at BNL is
working fine with little latency. However, it has become apparent that
each batch job can not access the BNL CB, as it becomes saturated
at 100 jobs accessing simultaneously. They will try to limit it to
50 at a time, but controlling GRID jobs to wait in queue does look
difficult. If Tier-1 CB at BNL crashes, it could bring down Tier-0
as well.
3. WT2 status and infrastructure
- Current year CPU and disk spaces are fully installed and operational.
- Plans for 2009 is not yet in the works. With the role of SCCS changing
it will be necessary to investigate price/performance of new systems
purchase, and billing the power bills etc. Some negotiation with US ATLAS
is foreseen. A through study might require 2 FTE planning. With the
technological cycles changes in mind, wait 6 months till decision.
- Solaris 10 update to version 5 is still ongoing.
4. Network Monitoring machine request from US ATLAS
- Wei will keep in touch with US ATLAS, as there are questions as to how
useful they will be, and also the security issues of the OS system,
we will delay the purchase.
5. Interactive machine for SLAC-ATLAS users and 1/2 Thumper Disk space
- Install ticket has been created by Wei for the 8 cpu Solaris machine
(RHEL4-64) and the Thumper to be shared 1/2 each with BABAR
- Disk partitions will be in NFS.
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