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Difference between revisions of "Top-BDII list for NGI"
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== Top-BDIIs considered for NGIs core services availability computation == | == Top-BDIIs considered for NGIs core services availability computation == | ||
The following table contains the list of the NGIs' Top-BDIIs. These instances will be used to calculate the '''monthly NGI's availability reports'''. | The following table contains the list of the NGIs' Top-BDIIs. These instances will be used to calculate the '''monthly NGI's availability reports'''. | ||
'''Note''': if you think that a wrong top-BDII entry is mentioned in the table below, please send a GGUS ticket to the Operations support unit indicating the entry to replace and the new service end-point. | |||
*More NGIs may report the same Top-BDII, if they are sharing the service (e.g. if they have a common Operations Centre). | *More NGIs may report the same Top-BDII, if they are sharing the service (e.g. if they have a common Operations Centre). | ||
Revision as of 09:15, 14 October 2011
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Top-BDIIs considered for NGIs core services availability computation
The following table contains the list of the NGIs' Top-BDIIs. These instances will be used to calculate the monthly NGI's availability reports.
Note: if you think that a wrong top-BDII entry is mentioned in the table below, please send a GGUS ticket to the Operations support unit indicating the entry to replace and the new service end-point.
- More NGIs may report the same Top-BDII, if they are sharing the service (e.g. if they have a common Operations Centre).
- NGIs can report more than one service, if they have set up failover at client side using multiple Top-BDIIs. The result availability will be calculate as an OR of the single Top-BDIIs availability (hourly).
| Operations Centre | Top-BDII host(s) | Notes |
|---|---|---|
| AsiaPacific | bdii.grid.sinica.edu.tw | |
| CERN | lcg-bdii.cern.ch | |
| Serbia | bdii.ipb.ac.rs | |
| Albania | ||
| Armenia | bdii.grid.am | |
| Austria | grid-bdii.uibk.ac.at | |
| Bosnia Herzegovina | c15.grid.etfbl.net | |
| Bulgaria | bdii.ipp.acad.bg | |
| Belarus | topbdii.glite.basnet.by | |
| Switzerland | bdii-fzk.gridka.de | |
| Cyprus | bdii101.grid.ucy.ac.cy | |
| Czech Republic | bdii1.egee.cesnet.cz | |
| Germany | bdii-fzk.gridka.de | |
| Denmark | ||
| Spain | gridii01.ifca.es, bdii.pic.es, topbdii01.ncg.ingrid.pt | Spanish sites also point to the Portuguese TopBDII |
| Finland | No Top-BDII currently in use | |
| France | cclcgtopbdii01.in2p3.fr,topbdii.grif.fr | |
| Georgia | s2.ngi.grena.ge | |
| Greece | bdii.marie.hellasgrid.gr,bdii01.afroditi.hellasgrid.gr,bdii.ariagni.hellasgrid.gr,bdii.athena.hellasgrid.gr,bdii.isabella.grnet.gr | |
| Croatia | bdii-egee.srce.hr | |
| Hungary | grid152.kfki.hu | |
| Ireland | All sites use the CERN top-bdii | |
| Israel | wipp-bdii.weizmann.ac.il | |
| Italy | egee-bdii.cnaf.infn.it | five instances under dns round robin |
| Lithuania | bdii.mif.vu.lt | |
| Latvia | bdii.grid.etf.rtu.lv | |
| FYR Macedonia | grid-bdii.ii.edu.mk | |
| Moldova | ||
| Montenegro | bdii.grid.ac.me | |
| Netherlands | kraal.nikhef.nl,bdii03.nikhef.nl,bdii.grid.sara.nl,bdii2.grid.sara.nl | |
| Norway | No Top-BDII currently in use | |
| Poland | bdii-top.reef.man.poznan.pl, zeus60.cyf-kr.edu.pl, topbdii.polgrid.pl | All 3 working under DNS pool bdii.cyf-kr.edu.pl |
| Portugal | topbdii01.ncg.ingrid.pt, gridii01.ifca.es, bdii.pic.es | Portuguese sites also point to the Spanish TopBDIIs |
| Romania | bdii.grid.ici.ro, bdii.nipne.ro | |
| Slovenia | bdii.sling.si | |
| Slovakia | bdii.ui.savba.sk | |
| Sweden | ||
| Turkey | bdii.ulakbim.gov.tr | |
| UK | lcgbdii.gridpp.rl.ac.uk | |
| SAGrid | srvslngrd001.uct.ac.za | |
| IGALC | is.igalc.org | |
| ROC_LA | top-bdii.roc-la.org | |
| Russia | lcg15.sinp.msu.ru |
Computation algorithm
A brief description of the algorithm used for the availability calculation.
There could be two different scenarios:
- The NGI reports only one Top-BDII. It could be a single top-bdii instance, or an alias for a DNS pool, but it has to be monitored by the NGI Nagios. If the alias is used by the sites but only the single instances in the pool are monitored, the NGI should enter the list of the instances. In this case the Availability and Reliability statistics are calculated asking directly the monthly values for the service to MyEGI.
- The NGI reports a list of Top-BDII that are used by the sites to configure failover at client side. In this case the steps are the following
- Query MyEGI to get the hourly A/R values for every top-BDII listed
- Select, for every hour, the best availability/reliability performance of the top-BDIIs
- Calculate the average of this selected values: (sum of the best performance selected)/(number of hours where the status was known)