CMS Tier-3 News Item
All the t3wn will be migrated to SL6 by the end of Jan 2015
Summary
Both CMSSW and WLCG expects a SL6 T3 to properly work, so all our SL5
t3wn*
will be reinstalled as SL6
t3wn*
Details
During the recent T3 Steering Board meeting held in Dec '14 at ETHZ the T3 users representative agreed about the migration of the current T3 to a full SL6 based T3 by the end of Jan 2015 ;
All the T3 users will have to migrate to the SL6
t3ui1*
servers and submit their jobs only from there to validate their works on the SL6
t3wn*
Following the migration the old SL5
t3ui0*
will be left
as they are but the direct SSH connection from Internet will be prevented ; the T3 users will have to use a SL6
t3ui1*
server as a bridge to login to a SL5
t3ui0*
server.
Furthermore the SL5
t3ui0*
HW maintenance won't be performed anymore ( no broken disks swapped, no broken RAM swapped, etc.. ), so their users might loose their files hosted in
/scratch
; finally we'll use the SL5
t3ui0*
HW components to repair a broken SL6
t3wn*
since some of them run similar HW
FabioMartinelli 15. 12. 2014