Andrea Sciabà CERN CMS availability in December Critical services  CE, SRMv2 (since December) Critical tests  CE: job submission (run by CMS), CA certs.

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Presentation transcript:

Andrea Sciabà CERN CMS availability in December Critical services  CE, SRMv2 (since December) Critical tests  CE: job submission (run by CMS), CA certs (run by OPS)  SRMv2: “lcg-cp” (copies a local file to the SRM in the provided tokens and default space and then it copies it back) (run by CMS)

Andrea Sciabà CERN CERN Just a few SRM failures; downtime on 9/12 due to Oracle upgrade Excellent reliability

Andrea Sciabà CERN ASGC Oracle problem caused a very high load on CASTOR database. Debugged with help from CERN CASTOR and DB team Poor reliability; no downtime was scheduled to fix the problem

Andrea Sciabà CERN CNAF Excellent reliability A problem not shown by any CMS critical test: software area was unavailable on 1- 2/12 due to GPFS problems

Andrea Sciabà CERN FNAL CE at FNAL still ignored in GridView...  CE and SRMv2 are in two different BDII sites, GridView does not aggregate them Very good reliability, but risk of overestimating it due to CE missing

Andrea Sciabà CERN IN2P3 CE: electrical maintenance on 1-4/12; jobs stuck on 26/12 SRMv2: downtimes declared 17-19/12 (why barely visible on Gridview?). SRM overloaded due to recursive srmls issued by CMS ProdAgent Very poor reliability, diagnosis took long

Andrea Sciabà CERN PIC Maintenance from 14 to 16 due to storage service upgrade Unreliability on 16/12 “amplified” due to CE test failure in a short time window not in maintenance? Modulo that, excellent reliability

Andrea Sciabà CERN FZK CE: extended downtime of all CEs from 25/12 to 29/12, then frequent job aborts (“unspecified gridmanager error”) SRMv2: several dCache errors, most about full devices Poor reliability during the holidays

Andrea Sciabà CERN RAL Excellent reliability