ATLAS SCCS Planning 04Oct2006
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  9am, SCCS Conf Rm A, to call in +1 510 665 5437, press 1, 3935#

Present: Charlie, Richard, JohnB, Wei, Chuck, Randy, BillL, Len

Agenda:

1. DQ2 Status/Web Proxy

    The machine had to be reboot, not sure why but need to
    watch. Couldn't access it via the console either.

2. Slots for ATLAS Production jobs and other batch related stuff

    When do we expect the new fairshares discussed last week deployed?
    Have some questions out to Platform which need answered
    first. Chuck and Randy are away next week so it may not happen
    before then. Would base the ATLAS share on what slice of the batch
    system that will be bought for the Tier2. Will use a lower estimate
    just now as it is easier to raise the fraction later than lower
    it. Some of the money will also need to spent on a rack, part of a
    network switch and console. Will try to get this order into KIPAC.

    Still need to decide if we will have 1 or 2GB per core. Today's
    jobs only require 1GB but ATLAS requirements are 2GB. It would be a
    very unusual to open machines and put more memory in later and
    could introduce support issues. The KIPAC machines have 16GB memory
    but only one disk. ATLAS jobs might need more disk. These machines
    have 16 slots but if you use more than 8 (or was it 4?) they clock
    down the rate so everything gets slower.

3. Trigger Farm

    Work tomorrow morning should allow enough power to be provided for
    the farm to move up from IR2.

4. AOB

    - Advisory Board Meeting

      Over the last two months an election for the Chair of the Western
      Tier 2 Advisory Board. There were an even number of voters and a
      there was a tie. Bill Lockman and Gordon Watts were the two folk
      who were voted as both winners. There have been some discussions
      between the winners and the voters, it was decided to make one
      the chair for a year and the other chair-elect. As Bill isn't
      available immediately Gordon will be the chair for a year with
      Bill taking over afterwards and there will be a new chair-elect
      elected at that time.

    - Workshop on DQ2 at BNL report by Wei

      They had someone there on the development team. They explained
      the recent problem they say with the T1-T2 tests. This seems to
      be due to a central catalogue. They are thinking of have a
      distributed catalogue and getting rid of some of the old LCG
      stuff to fix this problem. There are also discussions on how to
      package it to make it easier to install. The developers are now
      asking for login access at sites. FTS is extremely
      immature. There is a need for a fall back mechanism, currently
      use dq2_get. Another person described how the various dq2_*
      commands work. Also a discussion on disk cleaning at the various
      sites. Torre Weanus gave an explanation on how PANDA works, they
      main issue at the moment is how to push PANDA out to opportunistic
      sites that have free CPU power (but no storage space). xrootd was
      mentioned a few times, as there are so many problems with dCache
      and SRM it seems they want a backup. Not sure what the timescale
      might be for this. We should make sure we are not surprised by
      their desires. Could link up Andy with someone at BNL.

    - Jamboree

      Borrowing disk space from BaBar is progressing, officially put
      request into UNIX group to do the installation. Need to know what
      type of service wished, current guess is a big glob of disk
      served via NFS. Don't expect it will be wished back very soon,
      probably have it for two years till the equipment reaches it end
      of life. Probably want to integrate into
      /afs/slac/g/atlas/work/.. area for the moment. For data transfer
      should encourage users to use the dq2 server to avoid
      transferring the same data multiple times.

      Users will probably log in to yakuts. Norics might be less busy
      but yakuts are closed to CERN setup.

Action Items:
-------------

061004 Randy	Find out about xrootd for ATLAS plans

061004 Richard	Announce election of Chair/Chair-Elect of WT2 AB.

061004 Randy	Project number of nodes for purchase for both 1GB/core
 		and 2GB/core

060927 Stephen	Write web page with description of SLAC batch system
        061004 Copied BaBar page and started editing, hopefully in
 	      better shape next week;
 	      http://www.slac.stanford.edu/~gowdy/batchDesc.html

060830 Richard	Talk to Gregory about "getting" disk
        060906 Did try but not managed yet.
        060920 Trying to get together tomorrow to talk about it.
        060927 Don't know the status.
        061004 Done.

060816 Chuck	Check with Bob about web server approval need
        060823 To be done.
        060830 To be done.
        060906 Gary believes that it wouldn't need approval but should
 	      check with Bob.
        060913 Still need to talk to Bob.
        060920 No news.
        060927 Nothing yet.
        061004 Not done yet.