EGIIn SPIRE Computation of Overall Availability and Overall
EGI-In. SPIRE Computation of Overall Availability and Overall Reliability for Federations/Regions/NGIs handling of sites that are in production for a fraction of the calendar month T. Ferrari/EGI. eu 1/26/2022 EGI-In. SPIRE RI-261323 1 www. egi. eu
Problem • NGI OPS monthly availability – Affected by the A/R performance of its sites – Sites may be certified just for a fraction of the month (e. g. when the enter production or they start their decommissioning) – In case of low A/R during that period (potentially short), the NGI statistics are affected considerably 1/26/2022 EGI-In. SPIRE RI-261323 2 www. egi. eu
Example: BIFI-IBERGRID in Oct 2012 https: //goc. egi. eu/gocdbpi/private/? method=get_cert_status_changes&site=BIFIIBERGRID <TIME>03 -OCT-2012 12. 32. 17</TIME> <UNIX_TIME>1349267537</UNIX_TIME> <SITE>BIFI-IBERGRID</SITE> <OLD_STATUS>Certified</OLD_STATUS> <NEW_STATUS>Suspended</NEW_STATUS> EGI-In. SPIRE RI-261323 www. egi. eu
Proposal • Extract information about status transitions from GOCDB PI – method=get_cert_status_changes • When computing NGI A/R statistics – Exclude a site when not “certified” for the whole month – Relevant transactions • Uncertified // sites joins the infrastructure • Certified suspended // site leaves the infrastructure EGI-In. SPIRE RI-261323 www. egi. eu
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