Introduction

The ECaccess software gives Member States (in the following "Member States" (MS) includes "Co-operating States") and other ECMWF users batch and interactive access to the ECMWF computing and archiving facilities. Access is available via the Internet as well as via RMDCN.

This user guide, which is intended for all users of the ECaccess software, describes the concepts and procedures for accessing data and running jobs at ECMWF. If you are to perform the administrative task of installing and/or maintaining the ECaccess software, you should study the ECaccess Administrator's Guide. For the gateway concepts and procedures see section 2.

This guide is structured as follows:

Getting started

• Section 2 describes the ECaccess global architecture, focusing on the FTP, Web, Telnet and X11 components.
• Section 3 gives an overview on interactive and shell script user authentication.

Running batch work at ECMWF

For automating data transfers and submitting batch jobs, refer to:

• Section 4 describes how to initiate unattended transfers from ECMWF.
• Section 5 describes the ECaccess Web Toolkit, the full-featured client
• Section 6 describes the ECaccess Web Services, in particular how to CURL to interact with the ECaccess Web Services API

ECaccess on-line

For access to on-line ECMWF computing facilities, refer to:

• Section 7 describes web-based management of jobs and file transfers to and from the ECHOME (for "ecgate" home directory), ECSCRATCH (for "ecgate" scratch directory) and ECFS directories.
• Section 8 describes web-based monitoring and trouble- shooting of batch jobs and file transfers.
• Section 9 describes logging in at ECMWF via the gateway's single-sign-on Telnet server component.
• Section 10 describes logging in at ECMWF via the gateway's single-sign-on SSH server component.
• Section 11 describes starting X11 applications on ECMWF servers using the single-sign-on X11 access component.