Seaborg Update

From: James M. Craw (craw_at_nersc.gov)
Date: 09/13/2004


Dear NERSC Users:

In the interest of providing immediate access to NERSC users, Seaborg
is being returned to service in a known degraded state.  While IBM and
NERSC staff continue to work on a high severity I/O performance problem,
NERSC users are being provided access to the system.

The system migration to AIX 5.2 is now successfully complete.  While
there were unforeseen difficulties, the only remaining issue is related
to large amounts of I/O on the filesystems.  Smaller jobs, and jobs with
very little I/O, will most likely not see any performance issues.
Resolving the aggregate I/O performance problem remains a number one
priority item for NERSC.  NERSC staff continue to work aggressively,
around the clock, with IBM to resolve this problem.

Thank you for your patience while we work with IBM to restore full 
production service.  If you encounter any problems, have any questions 
or require further assistance, please contact the NERSC consulting staff 
at consult@nersc.gov.

Jim Craw
HERSC Computational Systems Group Leader

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