Technical Bulletins

May 10, 2016.
Livermore Computing (LC) will be conducting facility work that requires two full power outages of Buildings 451 and 4525. Based on the availability of LLNL and LC electricians and staff, the first outage is scheduled from June 3–June 6, 2016. The second outage will be scheduled on a later date, no later than 9/23/2016. The two outage schedules are detailed in the following technical bulletin.

May 10, 2016.
Livermore Computing (LC) is pleased to announce the deployment of new 100-TB /nfs/tmp file systems on the Collaboration Zone (CZ), the Restricted Zone (RZ), and the Secure Computing Facility (SCF). The /nfs/tmp file systems provide temporary file space on LC production machines.

February 27, 2016.
As a forum to share information and important announcements, the Livermore Computing (LC) users meetings are scheduled routinely to get feedback and, most importantly, to hear from users about how the machines are used and what LC can do to accommodate their needs. This technical bulletin contains the agenda for the next users meeting scheduled on March 1, 2016.

February 17, 2016.
Livermore Computing (LC) is pleased to announce the deployment of new, non-purged workspaces for all users and groups on LC systems (Collaboration Zone,CZ; Restricted Zone, RZ; and Secure Computing Facility, SCF), with a quota of 1TB per user. The first deployment will be on the CZ systems during the week of February 22, with RZ and SCF workspaces available in the following weeks.

September 30, 2015.
The High Performance Storage System (HPSS) archival storage system at Livermore Computing (LC) imposes a yearly growth-based quota. Reset each year on fiscal year boundaries, the FY16 (10/1/2015–9/30/2016) storage quotas per user are in the following technical bulletin.

September 25, 2015.
Livermore Computing (LC) will be conducting facility work that requires two full power outages of Buildings 451 and 4525. Based on the availability of LLNL and LC electricians and staff, the outages are schedule from July 30-August 3 and October 15-19, 2015. The two outage schedules are detailed in the following technical bulletin.

June 24, 2015.
The High Performance Storage System (HPSS) archival storage system at Livermore Computing (LC) imposes a yearly growth-based quota. Reset each year on fiscal year boundaries, the current storage quotas per user are found in this technical bulletin.

Updated 1/7/19. DEPRECATED: This TB has been deprecated because the following utilities are now defunct: hsi2cielo, removed in 2015; hsi2slic, removed 1/23/19. Use scp instead.
May 22, 2015.
Similar to FTP or NFT, Hierarchical Storage Interface (HSI) is a client for communicating with the storage system at Livermore Computing. HSI offers a modest level of concurrency in file transfers, although it does not have the level of reliability of NFT.

May 11, 2015.
To improve file system availability on the Secure Computing Facility (SCF), Livermore Computing (LC) will begin to cross-mount file systems so that they can be accessible from additional clusters.

March 17, 2015.
Livermore Computing (LC) is pleased to announce the deployment of a new 200-TB /nfs/tmp file system on the Collaboration Zone (CZ). The /nfs/tmp file system provides temporary file space on LC production machines.

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