ATLAS SCCS Planning 10Jan2007
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9am, SCCS Conf Rm A, to call in +1 510 665 5437, press 1, 3935#
Present: JohnB, Stephen, Wei, Randy, Booker
Agenda:
1. DQ2 Status/Web Proxy
Nothing since last week.
There is a request that all Tier-2s get a copy all AOD for the
latest simulation production. Probably not enough disk space to
keep it all in the existing disk space and keep production
running. Expect this to start happen in February. May need to get
tape system in use by then. Should get from production folk an
estimate of the needed space nearer the time.
2 Tier-2 Hardware
Not sure what was done before Christmas. Need to make sure we have
power. Many high priority needs also competing with ATLAS Tier-2
hardware for power.
3. HPSS/gsiftp/xrootd
Want to allow xrootd to be used locally (and eventually over the
WAN) for data access while also fitting in the ATLAS model for data
import and export.
Booker should talk to AndyH about what is needed to help make this
happen. There is a pluggable system of deciding what backend store
you want to use for SRM, might be a way forward. Need to understand
how easy/hard that is to do. This would be a stop-gap measure and
not a complete solution.
Another option is that there is a plug-in module for gsiftp to talk
to the backend storage. It is available for Unix file system, HPSS
and some other systems but not xrootd. xrootd has a posix interface
so perhaps we can make it talk to xrootd via the unix file
system.
There should be a meeting, hopefully tomorrow afternoon, to talk
about this to see what would work. Will draft options at the
meeting for circulation.
4. AOB
Gordon Watts will be at SLAC next week Tuesday and Wednesday. Will
organise a tour for him.
Action Items:
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061213 Booker Talk to AndyH (and others) about moving SRM interface forward
070103 Can plug in a gsiftp module for HPSS 6.2, DPM and
dCache. Wei told AndyH but sure if it is useful. We are
running HPSS 5.1 though.
070110 Will have a meeting tomorrow afternoon
061108 Richard Discuss with SLAC Security longterm approach to ATLAS VO
061115 No information.
061213 Nothing happened yet.
070103 No information.
070110 Richard & BobC in Denver, Stephen will email them.
