Raw data copy
Currently we have
3.6 TB raw data (1.5 TB LEP1, > 2TB LEP2)
2 copies, both on DLT2000
Obsolete tape medium, no long term support, no robotics
Written at Echenevex in Vax native format
Can only be read on VMS
~Inaccessible after 2001
Make a copy on modern media, in EPIO format
IBM 9840, robotics, readable on Unix
As accessible as all other Aleph datasets
LEP 1 copy has started on ALWS
1995 done, 1994 ongoing @25GB/day. Done in ~2 months
LEP 2 copy will be done during reprocessing
Marco Cattaneo 1
HPUX support
No new investment in CERN CSF since 1995
Has become small fraction of CPU available to Aleph
Recently used only for LEP1 productions
Not used since Easter 2000
Scheduled for removal end-2002
IN2P3 Lyon
Future of HP uncertain, no longer cost effective to maintain
Proposal:
No new LEP2 productions on HP
No new versions of Aleph software on HP after 2000
Marco Cattaneo 2
VMS support
VMS is essential for online, Falcon, raw data
Online use finishes this year
Falcon used in 2001 for LEP2 reprocessing
Raw data will be all in EPIO format after LEP2 reprocessing
Drop VMS support for production/analysis end 2001
VMS needed also for:
ALNEWS
Book-keeping info from online (runlog, logbook, time charts etc.)
Keep minimal system after 2001:
One server machine, a few important disks
Logins tolerated but discouraged (no backup of home directories)
“Beat’s private machine for reading mail”
Marco Cattaneo 3