Tier1 Operations Report 2017-10-04

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RAL Tier1 Operations Report for 4th October 2017

Review of Issues during the week 27th September to 4th October 2017.
  • A quiet week operationally. Availabilities (from SAM tests) looking good now that the problem with the LHCb tests is resolved.
Resolved Disk Server Issues
  • GDSS734 (LHCbDst - D1T0) was taken out of production on Thursday (28th Sep) as two disks had failed. It was returned to service the following day after the first disk had been replaced and the RAID rebuilt.
  • GDSS772 (LHCbDst - D1T0) crashed during the early hours of Tuesday morning (3rd Oct). It was returned to service during the working day. No fault has been identified on the server.
Current operational status and issues
  • There is a problem on the site firewall which is causing problems for some specific data flows. Discussions have been taking place with the vendor. This is having an effect on our data that flows through the firewall (such as to/from worker nodes).
Ongoing Disk Server Issues
  • None
Limits on concurrent batch system jobs.
  • CMS Multicore 550
Notable Changes made since the last meeting.
  • Re-distribution of data in Echo onto the 2015 capacity hardware is ongoing.
  • Services still using the older Quattor/SCDB system for configuration/deployment are being migrated to use Quattor/Aquilon.
Declared in the GOC DB
  • None
Advanced warning for other interventions
The following items are being discussed and are still to be formally scheduled and announced.

Pending - but not yet formally announced:

  • Upgrade the FTS3 service to a version that will no longer support the SOAP interface. The SOAP interface was disabled on Monday (17th July).
  • Re-distribute the data in Echo onto the 2015 capacity hardware. (Ongoing)

Listing by category:

  • Castor:
    • Move to generic Castor headnodes.
  • Echo:
    • Re-distribute the data in Echo onto the remaining 2015 capacity hardware.
  • Networking
    • Extend the number of services on the production network with IPv6 dual stack. (Done for Perfsonar, all squids and the CVMFS Stratum-1 servers).
  • Services
    • The production FTS will be updated now the requirement to support the deprecated SOAP interface has been removed.
Entries in GOC DB starting since the last report.
  • None
Open GGUS Tickets (Snapshot during morning of meeting)
GGUS ID Level Urgency State Creation Last Update VO Subject
130883 Green Urgent In Progress 2017-10-02 2017-10-03 CMS T1_UK_RAL_Disk to T2_US_Florida transfers are failing due to missing file(s)
130782 Green Top Priority In Progress 2017-09-27 2017-09-28 LHCb Please deploy new version of HEP_OSlibs
130467 Green Urgent In Progress 2017-09-10 2017-09-25 CMS T1_UK_RAL has SAM3 CE and SRM critical > 2hours
130207 Yellow Urgent In Progress 2017-08-24 2017-09-06 MICE Timeouts when copying MICE reco data to CASTOR
130193 Yellow Urgent Waiting for Reply 2017-08-23 2017-09-29 CMS Staging from RAL tape systems
128991 Green Less Urgent In Progress 2017-06-16 2017-09-18 Solid solidexperiment.org CASTOR tape support
127597 Red Urgent On Hold 2017-04-07 2017-10-03 CMS Check networking and xrootd RAL-CERN performance
124876 Red Less Urgent On Hold 2016-11-07 2017-01-01 OPS [Rod Dashboard] Issue detected : hr.srce.GridFTP-Transfer-ops@gridftp.echo.stfc.ac.uk
117683 Red Less Urgent On Hold 2015-11-18 2017-07-06 CASTOR at RAL not publishing GLUE 2.
Availability Report
Day OPS Alice Atlas CMS LHCb Atlas Echo Comment
27/09/17 100 100 100 100 100 100
28/09/17 100 100 100 100 100 100
29/09/17 100 100 100 99 100 100 One SRM SAM test failure: User timeout.
30/09/17 100 100 100 100 100 100
01/10/17 100 100 100 100 100 100
02/10/17 100 100 100 100 100 100
03/10/17 100 100 100 100 100 100
Hammercloud Test Report

Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 845); Atlas HC Echo = Atlas Echo (Template 841);CMS HC = CMS HammerCloud

Day Atlas HC Atlas HC Echo CMS HC Comment
27/09/17 97 98 98
28/09/17 93 97 100
29/09/17 66 70 100 Suspected Atlas problem as poor results at other Tier1 sites too.
30/09/17 71 77 100 Suspected Atlas problem as poor results at other Tier1 sites too.
01/10/17 100 100 100
02/10/17 99 97 100
03/10/17 96 94 100
Notes from Meeting.
  • None yet.