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September 2010 GDB. LHCOPN Update. John Shade /CERN IT-CS. Working Groups. LHCOPN Operations and Monitoring WGs F2F LHCOPN meetings London 8/9 March ( http:// indico.cern.ch/conferenceDisplay.py?confId =80755 ) - PowerPoint PPT Presentation
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LHCOPN UpdateJohn Shade /CERN IT-CS
September 2010 GDB
J. Shade/GDB LHCOPN Update 2
• LHCOPN Operations and Monitoring WGsF2F LHCOPN meetings
• London 8/9 March (http://indico.cern.ch/conferenceDisplay.py?confId=80755)• Barcelona 28/29 June (http://indico.cern.ch/conferenceDisplay.py?confId=88698)
Operations WG• Quarterly phone conferences
– Track correlation between outages and GGUS tickets
Monitoring WG• Conference calls in May/June, numerous e-mail exchanges
– perfSONAR MDM setup & deployment– LHCOPN Dashboard design
Mailing list: [email protected]
Working Groups
08-SEP-2010
J. Shade/GDB LHCOPN Update 3
• Working with DANTE to get a robust MDM solution in place (perfSONAR rollout had stalled)
• Clarified how to access performance data, and defined requirements for a dashboard for visualisation:See https://twiki.cern.ch/twiki/bin/view/LHCOPN/MonWG
• Comments on Requirements document are still welcome!
Monitoring
08-SEP-2010
J. Shade/GDB LHCOPN Update 4
• Missing a central view of LHCOPN
• Weathermap and e2emon applications restricted to GEANT portal
• HADES data:Bandwidth Test Control /
Achievable Bandwidth (BWCTL, automated 1Gbit/s TCP Bandwidth Control Test)
One Way Delay (OWD) One Way Delay Variance /
Jitter (OWDV) Packet loss Traceroute (number of hops
between two Hades nodes) Duplicate packets Out of order packets
Monitoring
08-SEP-2010
J. Shade/GDB LHCOPN Update 5
a) Site status is up when OWD between +/-15% from baseline and packet loss less than 0.1% per five minutes
b) Site status is down when packet loss = 100% per five minutes
c) Site status is degraded when measurement values are between a) and b).
Initial (simple) algorithm
08-SEP-2010
J. Shade/GDB LHCOPN Update 6
Prototype Dashboard
08-SEP-2010
J. Shade/GDB LHCOPN Update 7
Prototype Dashboard
08-SEP-2010
J. Shade/GDB LHCOPN Update 8
• DANTE baulked at the idea of developing their prototype further and supporting it
• SARA and CERN have picked up the gauntletSARA developers have tested XML query/responses
against the central HADES repository at DFNTOM team leader is evaluating how best to
develop/integrate the LHCOPN dashboard• Sites already have local monitoring, but we
need to provide a central view!• Nagios probes for sites are also expected
Where do we go from here?
08-SEP-2010
J. Shade/GDB LHCOPN Update 9
• Next F2F LHCOPN meeting will take place at CERN on 7th-8th OctoberAgenda: http://
indico.cern.ch/conferenceDisplay.py?confId=102716
Includes participants from Internet2, DANTE, T1s etc.Topics to be covered include:
• Tier2 Connectivity Requirements• Service Level Definition• GGUS• Monitoring• Operations
Upcoming Events
08-SEP-2010
J. Shade/GDB LHCOPN Update 10
