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News
NAS System Status for August 7
07 Aug, 2014
The scheduled date for the repaired cooling tower pumps to arrive at the NAS facility has slipped to Wednesday, August 13, with installation planned for the following day, August 14. No additional system downtime will be required for the...
NAS Systems Status for August 4
04 Aug, 2014
During the systems downtime over the weekend of August 2-3, NAS facilities personnel cleaned out the cooling tower reservoir and the chillers, in preparation for re-installing the cooling tower water pumps. Currently, the repaired pumps are...
Update: NAS Systems Are Available
03 Aug, 2014
NAS systems are now available and jobs can be run. Current system status is as follows: Pleiades Half capacity Westmere Half Westmere GPU Full Sandy Bridge ...
NAS System Status for July 23
23 Jul, 2014
During the weekend of August 2-3, 2014, we will shut down all NAS systems in order to clean the cooling tower. This work will be done in preparation for re-installing the cooling tower water pumps after they are repaired. The schedule has...
NAS System Status for July 22
22 Jul, 2014
We do not have any new information today on the status of repairs to the cooling tower pumps. Please continue to check back for updates. The status of NAS resources remains unchanged since yesterday: Pleiades Half capacity ...
NAS System Status for July 21
21 Jul, 2014
As mentioned in the July 18 update, we completed our inspection of the cooling tower water pumps and determined that they can be repaired. The repairs will take several weeks, during which time Pleiades will continue to run at reduced capacity. We...
Update: NAS System Status for July 18
18 Jul, 2014
We completed our inspection of the cooling tower water pumps, and determined that they can be repaired. The repairs will take several weeks. Pleiades will continue to run at reduced capacity until the repairs are complete and the pumps are returned...
Update: NAS System Status for July 17
17 Jul, 2014
We are currently running at reduced capacity, with only two of four chillers running. After inspecting the chilled water pumps and the pump controllers, we determined that the condenser water pumps are fine, and that two of the four cooling...
Update: Endeavour is Online
15 Jul, 2014
Endeavour is back online and available for use. We will continue to provide updates about NAS system status. If you have any questions or concerns, please contact the NAS Control Room at 800-331-8737, 650-604-4444, or support@nas.nasa.gov.
Update: Pleiades Online at Half Capacity
14 Jul, 2014
Pleiades is now back up and available at a reduced capacity, and jobs can be submitted. We will continue to provide updates periodically. If you have concerns about job processing, please contact the NAS Control Room at (800) 331-8737, (650)...
Status of NAS Systems
14 Jul, 2014
Here is the current status of NAS computer systems. At about 3:35 a.m. PT on Saturday, June 12, the chilled water pumps shut down, causing the chillers themselves to shut down. Given warning of the failure, NAS Control Room personnel shut down...
Pleiades Unavailable
12 Jul, 2014
Due to facilities issues, the Pleiades computer is currently unavailable. Another email will be sent when Pleiades is up. We apologize for any inconvenience this outage may cause. NAS Control Room support@nas.nasa.gov 800 331 8737 650 604...
Action Needed: Remove Java Software Versions Older Than Java Version 7 Update 55 or Version 8 Update 5
29 May, 2014
Due to critical security vulnerabilities, all versions of Java that precede Version 7 Update 55 or Version 8 Update 5 must be removed from all NASA systems. Please remove any previous versions of Java that you installed as soon as possible,...
Update: Operating System Reverted on Pleiades Compute Nodes
19 May, 2014
Due to stability issues with the SUSE Linux Enterprise Server 11 Service Pack 3 (SLES11sp3) operating system (OS) on Pleiades nodes, the nodes have been reverted to the versions of the OS they were running prior to Thursday, May 15. That is,...
Postponed: May 20 Lou Dedicated Time
19 May, 2014
The Lou dedicated time originally scheduled for May 20, 10:00 a.m. - May 21, 10:00 a.m. (Pacific) has been postponed. The upgrade to the SUSE Linux Enterprise Server 11 ServicePack 3 (SLES11sp3) operating system will be performed at a later date....
Pleiades Upgrade Completed
04 Apr, 2014
HECC engineers have now completed the multi-phase upgrade to Pleiades that began on January 9th. The expansion added 29 new Ivy Bridge racks, increasing the system's computational capability by 24.3%. Theoretical peak performance has increased from...
Training Materials for "NAS Hardware Resources Overview" Now Available
03 Apr, 2014
Training materials are now available for the webinar "NAS Hardware Resources Overview" which was held on April 02, 2014. You can download a PDF of the slides presented, and follow along with an accompanying MPEG file of the recorded audio...
Four Additional Ivy Bridge Racks Now Available on Pleiades
21 Mar, 2014
Pleiades has been upgraded with four more racks containing 288 Ivy Bridge nodes, bringing the total number of Ivy Bridge nodes to 5,174. Note: The final phase of this Pleiades expansion will be completed soon. For more information about scheduled...
Known Issue: MPT Startup Failures
17 Mar, 2014
Some users are experiencing a known issue in which PBS jobs are terminating due to mpiexec startup errors. The issue is under investigation. A workaround is available until we develop a long-term solution. For more information about the...
Reminder: Required IT Security Training Deadline is April 30th
07 Mar, 2014
For users who have not yet done so, please complete the annual IT Security Training through SATERN, NASA's System for Administration, Training, and Education Resources. This training session is a requirement for having a NAS account. Since we are...
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