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	Pleiades/Lou2 Dedicated Time Rescheduled to begin May 21 14 May, 2012 Due to delays in integrating the new Sandy Bridge processors, the dedicated time to clean the Pleiades InfiniBand fabric will take place the week of May 21st instead of this week. The new dedicated time schedule is: Pleiades: 7:00 a.m., May 21, to 10:00 p.m., May 26, 2012 (Pacific...

	Training Materials for "Getting an Account to use Resources at NAS" are Available Online 26 Apr, 2012 Training materials are now available for the webinar "Getting an Account to use Resources at NAS," which was held April 25, 2012. You can download a PDF of the slides presented, and follow along with an accompanying MPEG file of the recorded audio session. See Past Webinars Available for...

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	New User Orientation (4)		FAQ (16)		Updates on Issues Known system issues that we are working on
	Policies		Troubleshooting (5)		Tips & Tricks (6)
	The HEC Environment		Computing at NAS (1)		Data Storage & Transfer
	Best Practices (4)

Most Viewed

	Mass Storage Systems: Lou1 and Lou2 The NAS environment contains two mass storage systems, Lou1 and Lou2, to provide long-term data storage for users of our high-end computing systems....
	11 Apr, 2012 Views: 4467

	File Transfer: Overview Here's a general overview of the various file transfer scenarios within the NAS environment, with pointers to related articles. File Transfers...
	24 Oct, 2011 Views: 4249

	Pleiades Front-End Usage Guidelines The front-end systems pfe[1-12] and bridge[1-4] provide an environment that allows you to get quick turnaround while performing the following: ...
	14 Nov, 2011 Views: 4228

	Pleiades Lustre Filesystems Pleiades has several Lustre filesystems (/nobackupp[1-6]) that provide a total of about 3 PB of storage and serve thousands of cores. These...
	20 Dec, 2011 Views: 4140

	Lustre Basics A Lustre filesystem is a high-performance, shared filesystem (managed with the Lustre software) for Linux clusters. It is highly scalable and can...
	19 Dec, 2011 Views: 4102

Recent Articles

	Intermittent Job Failures Due to InfiniBand Issues Problem: Since the March 21 dedicated time, Pleiades users have reported new MPI/InfiniBand errors. Status: Resolved Actions: 05.09.12 - The...
	18 May, 2012 Views: 168

	Archiving Data in Compute Systems Archiving Data under Pleiades or Columbia Home Filesystems Users' data under the home filesystem of any NAS HECC system (such as Pleiades or...
	18 May, 2012 Views: 1054

	Remote File Transfer Commands The following file transfer commands can be used when the source and destination are located at different hosts. They can be used to transfer...
	18 May, 2012 Views: 2678

	Local File Transfer Commands The following file transfer commands can be used when both the source and destination locations are accessible on the same host where the command...
	18 May, 2012 Views: 2448

	Dealing with Slow File Retrieval There are sometimes problems with commands on Lou, that should finish quickly, but end up taking a long time. When you do an " ls " on Lou,...
	18 May, 2012 Views: 861