SLAC Site Report Chuck Boeheim Assistant Director, SLAC Computing Services

Growth Solaris: 900 batch + 60 file servers + 60 data base servers Linux: 50 -> 300 -> 512 batch Disk: 74 TB Babar, 4TB AFS Expect to add file servers, 40TB this summer Currently buying Sun T3 disks, Electronix IDE RAID arrays

New Linux Farm Selected VA Linux u servers Cluster support, power management Configuration: 2 CPU 850MHz, 1GB memory, 10GB disk, 100Mb ethernet 256 Units installed, 256 on order + misc servers VA assisted with OpenAFS support

New Tape Technology 20 STK 9940 drives being added 60GB per cartridge, 10MB/sec transfer Fibre channel host connections Existing HPSS data will stay on 9840 cartridges for now New data will be written on 9940s

OS Levels Solaris 2.6 and 7 in production Solaris 8 beginning deployment Linux 6.2 production kernel, Transarc AFS on RedHat kernel, OpenAFS on VA Linux Taylor support completed for Linux (Redhat 6.0 – 6.2). Both servers and desktops

HPSS Migration from 4.1 to in January Required to maintain vendor support Second HPSS service planned to support general staging Will be an alpha test of the port of HPSS 4.2 to Solaris

LSF Upgrade to 4.1 required for support, features. Scheduler struggled with 1000 machines when queue reached 6000 jobs, when fairshares used Simplified fairshare definitions May need to partition cluster Users requested to aggregate small jobs Giving input on LSF version 5 to Platform

Migration Migrated to Exchange server, SSL imap All clear-text imap and pop services closed end of December Performing well with > 1800 users Stability problems, finger pointing between Microsoft, anti-virus vendor

Security Continuing exploits requiring large staff effort to combat Three dedicated security staff Continuous effort distributing patches Trying to automate, kernel patches a problem