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Email Announcement Archive

[Users] Upcoming Cori Scratch Filesystem Maintenance, September 10-12

Author: Rebecca Hartman-Baker <>
Date: 2019-08-30 13:17:25

Dear NERSC Users, Cori SCRATCH (/global/cscratch1) is scheduled to undergo a Lustre filesystem upgrade between Tuesday, September 10th and Thursday, September 12th. During this maintenance, Cori Scratch will be unavailable to all NERSC resources, including the DTNs. This software upgrade is being performed to address a number of long standing performance and stability issues we have experienced with the legacy Lustre version presently installed. This upgrade is expected to take one full day of work, followed by a full day of testing prior to return to service. Working with Cray, we have full confidence that data on /global/cscratch1 will be preserved through the upgrade process. Nevertheless, we wanted to take a moment to remind you that it's a good idea to make periodic backup of your critical data on /global/cscratch1. As a reminder, SCRATCH does NOT have snapshots or other data backups in place. Please let us know if you have any questions by filing a ticket at Thanks for your patience as we improve the reliability and performance of the scratch filesystem for you! Regards, -Rebecca -- Rebecca Hartman-Baker, Ph.D User Engagement Group Leader National Energy Research Scientific Computing Center | Berkeley Lab | phone: (510) 486-4810 fax: (510) 486-6459 Pronouns: she/her/hers _______________________________________________ Users mailing list

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