Content tagged with #Manual

July 7, 2017.
On Wednesday, July 12, the Livermore Computing Data Storage Group will release a new version of HTAR on all open (OCF) and secure (SCF) production machines. HTAR—a utility that combines a flexible file-bundling tool with fast parallel access to high performance storage—allows users to store and selectively retrieve very large sets of files efficiently. This update to HTAR allows specifying entries to exclude during creation of new archive files.

Slurm is a combined batch scheduler and resource manager that allows users to run their jobs on Livermore Computing’s (LC) high performance computing (HPC) clusters.  This document describes the process for submitting and running jobs under the Slurm Workload Manager.

This page describes training materials that are available, including workshops, online training, user manuals, and resources for new employees.

In addition to our Tutorials, users of Livermore Computing (LC) systems have access to several types of user information and documentation. Questions may be directed to the LC Hotline via e-mail or via telephone at (925) 422-4531. 

The Livermore Computing (LC) Identity Management (IdM) System automates the process of provisioning (creating and updating) and deprovisioning (deleting) user accounts across LC's multiple systems. IdM also allows the management of of accounts, groups, and LC identities for both the Open Computing Facility (OCF)—Collaboration Zone (CZ) and Restricted Zone (RZ)—and the Secure Computing Facility (SCF).


FTP (File Transfer Protocol) is an industry-standard protocol and user interface for transferring files between computer systems by means of a series of interactive commands. FTP involves a local client (software you execute to send or receive files) and a remote server (software elsewhere that responds to instructions from your client to accept or deliver files).

HTAR ("HPSS Tape Archiver") is an LC-designed TAR-like utility program that makes TAR-compatible archive (library) files but with High Performance Storage System (HPSS) support and enhanced archive-management features.

This manual provides a basic guide for generating output and transferring files on LC computers. It outlines naming and locating tips for local network printers and introduces local tools (such as LISTPQ) for discovering and taking advantage of LC's standardized print-queue names.

Both TapeFIS and OWL (one-way link) FIS are available on the iSNSI network. iSNSI TapeFIS is bidirectional and requires Derivative Classifier (DC) intervention for file transfers from Pinot to the OCF. Login examples are provided below. OWL  transfers are significantly faster but are unidirectional for transfers from CZ and RZ to the SCF.

The Livermore Computing (LC) file interchange service (FIS) allows LC users to transfer files between the unclassified Open Computing Facility (OCF)—both the Collaboration Zone (CZ) and the Restricted Zone (RZ)—and the classified Secure Computing Facility (SCF). This document describes how FIS works and how to use it effectively.