middleware:Globus

Simplified Globus Toolkit 4 architecture

The Globus Toolkit system consists of several components which interact over the network

1. A provider site.
2. The user uses the generic graphical User Interface (UI) for resources access, authentication, authorization to use the resources. It provides CLI tools and API to perform some basic operations and development.
3. From UI user can access the functionalities offered by the Information, Workload and Data management systems.
4. All connections need to pass the Gatekeeper, which acts as a generic interface to the cluster, managed by the Local Resource Management System (LRMS).
5. A Storage Element (SE) provides uniform access to data storage resources. It may control simple disk servers, large disk arrays or tape-based Mass Storage Systems (MSS). Most storage resources are managed by a Storage Resource Manager (SRM) - a middleware service providing capabilities like transparent file migration from disk to tape, file pinning, space reservation, etc.
6. The Information Service (IS) provides information about the Grid resources and their status. The resources are discovered via IS. The published information is also used for monitoring and accounting purposes. Globus Monitoring and Discovery Service (MDS) used for resource discovery and to publish the resource status.

Package:    Globus Toolkit 4.0.8
 os:             Scientific Linux version 4.8 64 bit
 server:        dgiref-globus40.fzk.de
 manuals:   server v. 4.0.8

Package:    Globus Toolkit 4.2
 os:             Scientific Linux version 5.4 64 bit
 server:        dgiref-globus.fzk.de
 manuals:   server v. 4.2.1 / services / extensions

• globus toolkit server v. 4.0.7

• Operating systems
• The globus community
• Globus updates and patches
• Globus usage statistics

• codebase
• binary repo

• guide to dgridmap

• Example of dgridmap
• pbs.pm