Content tagged with #Technical-Bulletins

May 16, 2011.
This bulletin details major changes to the Open Computing Facility (OCF) that will be made during the next five months as Livermore Computing (LC) moves toward supporting a Livermore Valley Open Campus.

February 2, 2009.
Most CHAOS 4 machines—Atlas, Eos, Hera, Juno, Minos, Rhea, and Zeus—use NAT (network address translation) for their internal compute nodes. These internal nodes do not have accessible network interfaces to outside machines. Outward bound connections are sent to a routing node, and NAT changes their apparent IP address. Because they can not effectively communicate in both directions with the external world, storage tools will not work on these internal compute nodes. Storage tools have not worked properly on these machines since their installation. With the incorporation of iorun into these tools, batch jobs can access storage.

December 16, 2008.
The Livermore Computing (LC) Data Storage Group (DSG) recently released the utility program called HSI (Hierarchical Storage Interface) on all open (OCF) and secure (SCF) production machines. HSI is a powerful interface for users of the High Performance Storage System (HPSS). It is intended to provide a familiar UNIX-style environment for working within the HPSS environment, while automatically taking advantage of the power of HPSS (e.g., for high speed parallel file transfers) without requiring any special user interaction, where possible.

April 18, 2019.
This TB supersedes TB#435
The High Performance Storage System (HPSS), the archival storage system for the Livermore Computing (LC) open and secure computing facilities, provides different classes of service (COS) for storing files. The Data Storage Group has configured HPSS to use different COS to make the best possible use of available hardware resources. To date, the user interface automatically selects the COS in which to store a file.

August 11, 2008.
DEPRECATED: This TB has been superseded by TB#530
The High Performance Storage System (HPSS), the archival storage system for the Livermore Computing (LC) open and secure computing facilities, provides different classes of service (COS) for storing files. The Data Storage Group has configured HPSS to use different COS to make the best possible use of available hardware resources. To date, the user interface automatically selects the COS in which to store a file.

April 14, 2008.
Hopper, the graphical file management tool, can do a lot more than just transferring files. Here are a few of the additional features that Hopper has to offer.

Online archive of technical bulletins.

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