Scientific Data & Computing Center

[RACF Computing Facility Staff <announce AT rcf.rhic.bnl.gov>]

The SDCC's internal network will be brought down for important maintenance on 
December 1st, from 6:00 AM to 6:00 PM EST.  This will impact the 
accessibility/usability of ALL SDCC services including:
-Connectivity to SSH gateways (note the campus gateway, cssh.rhic.bnl.gov, 
will stay online), NX servers, and interactive nodes (existing connections 
will be closed)
-General services including RCF mail service, Mattermost, Discourse and RT
-Batch processing
-Disk storage access, including remote AFS access, access via our SFTP 
gateways, NFS, GPFS, Lustre, and BNLBox
-Tape/HPSS storage access
-Access to the SDCC Kerberos service
-SDCC web server access

In preparation for this maintenance, the HTCondor pools on the SDCC HTC 
compute farm (RCAS/RCRS, SPOOL, and SPAR hosts) will be closed to new jobs 
starting at noon EST on 11/30. Any user batch or interactive processes still 
running at 6:00 AM on 12/1 will be terminated. Our HPC clusters (IC, KNL, 
Skylake, ML, and CFN gen4) will not start Slurm jobs which will run past 6:00 
AM EST on 12/1.

Once the maintenance is completed, mail service will resume and a 
notification will be sent to all users.

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