Southgrid Technical Meeting Pete Gronbech: May 2005 Birmingham

Present Pete Gronbech – Oxford Chris Brew – RAL PPD Santanu Das - Cambridge Lawrie Lowe – Birmingham Yves Coppens - Birmingham

Southgrid Member Institutions Oxford RAL PPD Cambridge Birmingham Bristol HP-Bristol Warwick

Monitoring reports/cgi-bin/lastreport.cgihttp://lcg-testzone-reports.web.cern.ch/lcg-testzone- reports/cgi-bin/lastreport.cgi Configure view UKI Dave Kants helpful doc in the minutes of a tbsupport meeting links tominutes of a tbsupport

GOC Accounting Gridpp view

Status at RAL PPD SL3 cluster on CPUs: GHz, GHz –100% Dedicated to LCG 0.7 TB Storage –100% Dedicated to LCG Configuring 6.4TB of SATA RAID disks for use by dcache Recent Power trip April 27 th.

Status at Cambridge Currently LCG on SL3 CPUs: GHz –100% Dedicated to LCG 2 TB Storage –100% Dedicated to LCG Condor Batch System Recent job submission problems Lack of Condor support from LCG teams

Status at Bristol Status –LCG involvement limited (“black dot”) for previous six months due to lack of manpower –New resources, posts now on the horizon! Existing resources –80-CPU BaBar farm to be switched to LCG –~ 2TB storage resources to be LCG – accessible –LCG head nodes installed by SouthGrid support team with New resources –Funding now confirmed for large University investment in hardware –Includes CPU, high quality and scratch disk resources Humans –New system manager post (RG) being filled –New SouthGrid support / development post (GridPP / HP) being filled –HP keen to expand industrial collaboration – suggestions?

Status at Birmingham Currently SL3 with LCG- 2_4_0 CPUs: GHz Xenon (+48 soon) –100% LCG 200GB Storage, 2TB shortly –100% LCG. Air Conditioning problems 21 st May (3 days) Babar Farm moving to SL3

Status at Oxford Currently LCG on SL304 Only 48 cpus running due to power limitations (Power trip on 10 th May) CPUs: GHz –100% LCG 1.5 TB Storage – upgrade to 3TB planned –100% LCG.

Apel Accounting Get latest rpm from This should fix the cron job problem or do it by hand: add RGMA_HOME=/opt/edg

Security Best practices link Wiki entry iptables?? – Birmingham to share their setup on the South Grid web pages

Kickstart Packages Minimum for worker ?? glibc-headers required by atlas graphics group pulls that in. (Other options may also) But development-tools may be more logical Atlas require various glibc headers which come from glibc-devel And zlib-devel

kickstart for worker nodes %packages office base-x # graphics is Needed as it pulls in glibc-headers openafs-client graphical-internet kernel kernel-smp pine grub gv gnupg -xchat -redhat-config-samba -samba

Grid Ice Need to open port 2136

Action Plan for Bristol Plan to visit on June 9 th to install an installation server –dhcp server –NFS copies of SL (local mirror) –PXE boot setup etc Second visit to reinstall head nodes with SL304 and LCG-2_4_0 and some worker nodes Babar cluster to go to Birmingham –Fergus, Chris, Yves to Liaise. –

Chris Brew Gave an overview of the hepix meeting including talks about SL versions Gave advice on using Maui fairshare and put config files on the south grid web site Gave advice on customizing ganglia and put files on southgrid web site.