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The Service Availability Monitoring (SAM) system is used to monitor the resources within the production infrastructure. SAM monitoring data is used for calculation of availability and reliability of grid sites. It includes the following components:

• probes: a test execution framework (based on the open source monitoring framework Nagios) and the Nagios Configuration Generator (NCG)
• the Aggregated Topology Provider (ATP), the Metrics Description Database (MDDB), and the Metrics Results Database (MRDB)
• the message bus to publish results and a programmatic interface
• the visualization portal (MyEGI).

SAM tool instances

• SAM Instances

Tests and probes

• Terminology
• Probe development policy
• SAM released probes
• EMI Nagios and status (ARC, dCache, gLite, UNICORE)

Profiles

Main profiles

FOR EGI AVAILABILITY/RELIABILITY COMPUTATION

• Resource Centres: ROC_CRITICAL - the profile for Availability/Reliability computation of EGI Resource Centres (OPS VO). It replaces WLCG_CREAM_LCGCE_CRITICAL as of 01 Jan 2012.

FOR GENERATION OF ALARMS IN THE OPERATIONS DASHBOARD IN CASE OF FAILURE

• ROC_OPERATORS

OTHERS

• ROC - all the possible metrics that NCG can use to configure NGI Nagios
• ARC
• GLEXEC
• NGI

WLCG

• WLCG_CREAM_CRITICAL
• WLCG_CREAM_LCGCE_CRITICAL profile used for WLCG Availability/Reliability computation
• WLCG_CRITICAL
• WLCG_CRITICAL_TEST

OSG

• OSG
• OSG_CRITICAL

Documentation

• SAM Release Notes
• SAM Administrator's Guide
• SAM/NAGIOS Reference Card for sitemanger
• User Guides (Nagios, MyEGI, POEM]
• Yaim Based Installation of Nagios & NCG
• FAQs
• Troubleshooting

• Setting up a VO SAM instance

SAM Project Tracking

• JIRA SAM project tracking system

Monitoring uncertified sites

• Setting NAGIOS to Monitor Uncertified Sites
  • IMPORTANT. EGI.eu provides catch-all WMS and BDII services for the monitoring of uncertified sites. The service is open for use, and your NGI can easily apply here.

Tools information pages

MyEGI

• MyEGI documentation
• MyEGI Web Services Specification

NCG

• NCG Component Overview
• Grid Monitoring Specific Ncg Recipes

Databases

• Aggregated Topology Provider (ATP)
• Profile Management Database (POEM)
• Metric Result Store (MRS)

SAM Milestones

• SAM milestones

Related Procedures

• Validate ROC or NGI Nagios Procedures: PROC05
• Setting a Nagios test status to OPERATIONS: PROC06
• Adding new probes to SAM: PROC07
• Management of the EGI OPS Availability and Reliability Profile: PROC08

SAM/Nagios EGI Support Procedures

• SAM/Nagios EGI Support FAQ
• SAM/Nagios EGI Support Rotas

Resources

• SAM Project home page
• Multi Level Monitoring Overview
• Computation of Service Availability Metrics in ACE
• SAM-PI documentation (Non official wiki page containing SAM PI examples)
• Andreade, P.; M. Babik, M.; Bhatt, K; Service Availability Monitoring Framework Based On Commodity Software; CHEP12, March 2012 (poster)