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Weekly Report: LSF Issues, ADCR Contention, and Tier1 Maintenance Updates (12-18 Nov 2012)

This report covers the operational issues experienced from November 12-18, 2012. Key highlights include several problems with the LSF system, some of which were resolved, though not all root causes are understood. A minor incident occurred with a Castor server, promptly addressed by the DSS team. Contention issues on ADCR due to repeated attempts to read from Oracle's redo logs were noted, alongside DATADISK space issues. Additionally, 5 hours of INFN-T1 tape maintenance caused downtime. Overall, Tier2 operations were smooth with minimal issues reported.

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Weekly Report: LSF Issues, ADCR Contention, and Tier1 Maintenance Updates (12-18 Nov 2012)

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  1. AMOD report12-18 Nov 2012 Rodney Walker Guido Negri

  2. Tier0 • several problems with LSF, mostly fixed though not all understood • small incident with a Castor server (alarm ticket opened, but problem already tackled by the DSS team) • contention on ADCR due to repeated attempts to read redo blocks from Oracle's redo log files. Index’s partition corrupted and reconstructed

  3. Tier1 • DATADISK space issues at several T1s, deletion during the beginning of the week helped • problems with ASGC tape, hardware decommissioning and network glitches were the cause • INFN-T1 tape downtime for 5hr for maintenance, no problems

  4. Tier2 • no major problems with Tier2s, only a very few GGUS tickets opened and tackled in a very timely way

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