Tier1A Status Andrew Sansum 30 January 2003

Overview Systems Staff Projects

Lots of Services DISK FARM CPU FARM CDF Babar Suns TESTBEDS Core Services AFS Datastore Support Systems

Lots of Operating Systems Production Farm –Redhat 6.2 (Close to end of life) –Redhat 7.2 (In production/ Babar) –Redhat 7.3 (close to Trial Service: For LHC) CDF Service –Redhat 7.1 (Kerberised Fermi Distribution) –Redhat 7.3 (Possible Future release) Solaris Service –Solaris 2.6/Solaris 8 EDG Testbed(s) - Redhat 6.2 -> Redhat 7.3

Lots of EDG Testbeds! Production Testbed (CE, SE, 3*WN+NM) Development Testbed (CE, SE, 1*WN) RGMA Testbed (CE, SE, WN and RB) WP5 SE WP3/WP5 development systems EDG UI CE for REDhat 7.2 service

Lots of Grid Testbeds! Tier1A Babar

New Hardware Disk –Expect 40TB –Continue with existing IDE technology, but different manufacturer. CPU –Expect 100 CPUs –Move to Pentium 4 or possible AMD

Some New Staff GridPP Staff: Traylen, Radden, Bly ESC/PPD System Staff: Wheeler, White, Sansum, Saunders, Ross, Folkes, Strong Management: Kelsey, Gordon, Sansum,... BITD Support: Networking, Operations, User Reg, AFS Experiment Support Staff (RAL and elsewhere) Users

Lots of New Projects Basic fabric performance monitoring (ganglia) Resource CPU accounting (based on PBS accounts/mysql) New CA in production New batch scheduler (MAUI) Deploy new helpdesk (end March) Network Performance tests (CERN/Bristol - also maybe WP7) Get ready for LCG (February deployment?)

Ganglia Monitoring Urgently needed live performance and utilisation monitoring –RAL Ganglia Monitoring (live)RAL Ganglia Monitoring (live) –RAL Ganglia Monitoring (Static)RAL Ganglia Monitoring (Static) Scalable solution based on multicast Very rapidly deployable - reasonable support on all Tier1A Hardware See:

New CA Deployed Now fully deployed by E-Science Centre (Jens+Alastair Mills) In use in UK core GRID Several PP have RA’s defined Approved by EDG - not yet in distribution. Once in EDG - termination date for old CA will be set.

New Scheduler (MAUI) With Redhat 7.2 now using MAUI Scheduler over PBS Some problems with MAUI scheduling on wallclock time - now corrected. Testing algorithms, but essentially have a range of strategies we can apply. Will make changes to queue structure in due course

New Helpdesk Software Old helpdesk (Remedy) - mail based, unfriendly. With additional staff, urgently need to deploy new solution. Expect new system to be based on free software (Bugzilla, Request Tracker …) Hope that deployed system will also meet needs of Testbed and Tier 2 sites. Expect deployment by end of March.

Network Performance Tests Simon Metson, Nick White, +…. Preparing for CMS production. Must be able to move data to CERN at Mbit/second. Currently aggregate 350Mbit/s to Bristol - but under 100Mbit/s to CERN. Main problem seems to be within CMS infrastructure

BaBar Batch CPU Use at RAL MOU

Successes (2002) Five additional staff online since January Fully engaged in EDG testbed. Making an impact in EDG: Steve Tier1A installation went very well in March/April/May Tier A service ramp up excellent: –Most successful of the Tier A services. SLAC seem pleased - so far.

Challenges Complete 2002/2003 tender/deployment Carry out major EU tenders for 2003/2004 Expand use of Tier 1 Need to evolve strategy to cope with diversity of requirements Deploy the LCG Testbed (What/When?) Enhance automation / out of hours cover Improve reporting to GridPP - accountability