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 10-12 file servers, 40TB this

summer Currently buying Sun T3 disks, Electronix IDE

RAID arrays

New Linux Farm

Selected VA Linux 1220 1u 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

1.2.17 kernel, Transarc AFS on RedHat 1.2.18+ 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 4.1.1 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

Email Migration

Migrated to Exchange server, SSL imap All clear-text imap and pop services

closed end of December 2000. 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