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FYI: Begin forwarded message: > From: Sandy Philpott <[log in to unmask]> > Subject: [Jlab-scicomp-briefs] Reminder: JLab HPC, farm, storage outage for Lustre upgrade Tue Feb 23 8am (and Feb 24 if needed) > Date: February 22, 2016 at 13:16:51 EST > To: [log in to unmask] > > All, a reminder of tomorrow morning 8am outage for Lustre upgrade. > > Sandy > > ----- Original Message ----- > From: "Sandy Philpott" <[log in to unmask]> > To: [log in to unmask] > Sent: Wednesday, February 17, 2016 9:40:51 AM > Subject: JLab HPC, farm, storage outage Tue Feb 23 (and Feb 24 if needed) > > Dear JLab HPC, Farm, and MSS Users, > > We are planning updates to our Lustre 2.5.3 filesystem on Tuesday Feb 23, that will impact the HPC and batch farm clusters and their storage; the Lustre-based /mss, /cache, /work, and /volatile filesystems will be unavailable. File services may be restored at the end of the day Tuesday, or if more time is needed we may continue through Wednesday close-of-business. This Lustre update is part of our continuing effort to improve the stability of the Lustre and ZFS fileservers that have been intermittently problematic since our upgrade from Lustre 1.8 started last May. > > Upon restoring Lustre filesystem services, our plans are to > > - add the 2 newest 2015 fileservers into production, an additional 0.5 PB into our existing 1.2 PB /lustre filesystem, then later decommission the oldest 2011 servers > - implement a Lustre "work" pool for the farm, to better handle small random files, with each 12-disk set configured as 3 mirrors of 4 striped disks > > Please plan accordingly for this scheduled one or two day upgrade of the Lustre filesystem next week. > > Regards, > Sandy > > Sandra C. Philpott, Operations Manager > High Performance and Scientific Computing > Thomas Jefferson National Accelerator Facility > 12000 Jefferson Ave. Ste 3 Newport News, VA 23606 > 757-269-7152 https://www.jlab.org/div_dept/cio > _______________________________________________ > Jlab-scicomp-briefs mailing list > [log in to unmask] > https://mailman.jlab.org/mailman/listinfo/jlab-scicomp-briefs ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1