Münster 2011 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 14: Instrumentierung III

HK 14.8: Vortrag

Montag, 21. März 2011, 18:15–18:30, HS2

The SysMES Inventory Module in the ALICE HLT Cluster — •Jochen Ulrich, Camilo Lara, Stefan Böttger, Timo Breitner, Pierre Zelnicek, and Udo Kebschull — Kirchhoff-Institute for Physics, Heidelberg University, Germany

When debugging, deciding on structural changes or distributing tasks in a heterogeneous computer environment like the ALICE HLT cluster, knowing the configuration of the nodes (hardware, software, network structure) is crucial. Gathering that information can be a time consuming task. That effort can be reduced by holding the information in an inventory database. Since a manually filled inventory is error-prone and hard to keep up-to-date, complete and consistent, an automatically updated inventory is needed to ensure the correctness of the data and thereby make the data usable for other components like for examle external scheduling. The inventory has been developed as a SysMES^* component in order to use existing funcionality, for example transactionality, monitors, clients. It uses an object-oriented model which is based on the Common Information Model and is used to describe the heterogeneous environment with all its specifics. The data is gathered using SysMES monitors and stored in a RDBMS making it available to other applications. The inventory module scans new nodes completely, keeps the data up to date automatically, visualizes the data in the SysMES GUI and informs about changes using SysMES events.
^* SysMES is the management solution used in the HLT cluster. DPG09 HK53.2