Hardware Support Tools Overview

Initial System Loader (ISL) Standalone Environment

Initial System Loader (ISL) Standalone Environment

The ISL standalone environment consists of the Initial System Loader, ISL-based tools which run directly from ISL, and the Offline Diagnostic Environment (ODE). On most PA-RISC machines, ISL is the first program run after execution of the firmware. ISL implements a command line interface which allows the user to obtain information on the bootup characteristics of the system; to modify these characteristics; and to load and execute programs such as the operating system, ISL-based tools, and the Offline Diagnostics Environment.

ISL-based tools consist of a set of diagnostics that diagnose the Central Processing Unit (CPU), memory, and portions of the I/O system on older series 700, 800, and 900 machines; and the Offline Diagnostics Environment (ODE).

The Offline Diagnostics Environment is an offline support tools platform that is run from ISL and is available on series 700, 800, and 900 machines. ODE provides a common user-friendly interface for diagnostics and utilities developed to run in this environment. Diagnostics and utilities provided under ODE include:

MAPPER - a utility for mapping out the physical layout of the SPU and its peripherals

IOTEST - a utility for testing I/O cards using IODC

PERFVER - a utility for testing peripherals attached to the boot path

A set of diagnostics/utilities for testing disks.

A set of diagnostics for testing CPU, memory, and selected I/O modules.

A license is required to run most of the ODE diagnostics and utilities.

The main purpose of the offline tools is to enable the user to troubleshoot a system which cannot be tested via the online tools, generally because a hardware problem exists which prevents the system from booting. The offline environment is also useful for some types of testing in which it is not desirable to have to boot the system first, as is often the case in manufacturing applications.

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HP B6191-90015a manual Initial System Loader ISL Standalone Environment

B6191-90015a specifications

The HP B6191-90015A is a high-performance laptop designed for users who require reliability and advanced features in their portable computing devices. Targeted primarily at business professionals and power users, this model encapsulates HP's commitment to delivering quality and efficiency in its products.

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