(r1) CompOpsPoliciesCERNTFC < CMSPublic

CMSPublic Web>CompOps>CompOpsPolicies>CompOpsPoliciesCERNTFC (revision 1) (raw view)~~EditAttachPDF~~

---++ requirements

   * All processing, production and analysis except the T0 uses EOS and the T2_CH_CERN endpoint per default
      * this includes local submission and GRID submission
      * write permissions are handled through …
   * The T0 uses two special scenarios which we should be able to switch in the T0 configuration
      * default mode: access and write files from/to both EOS and Castor and register to T0_CH_CERN
         * /store/data on Castor -> tape
         * /store/t0temp and /store/temp and /store/unmerged on EOS
         * /store/t0streamer on Castor -> disk only
         * /store/streamer on Castor -> tape
         * /store/express on EOS
      * test mode: access and write files only from/to EOS and register to T2_CH_CERN
         * /store/data on EOS
         * /store/t0temp and /store/temp and /store/unmerged on EOS
         * /store/t0streamer on Castor
         * /store/streamer on Castor
         * /store/express on EOS

---++ TFC switch for T0

   * The TFC gets read by the framework from $CMS_PATH/SITECONF/local/JobConfig/site-local-config.xml
   * At CERN, this points to the T2_CH_CERN TFC which only provides access to EOS

   * For the T0, there are two overrides in place to support the default mode (mixed Castor/EOS):
      * the T0 code defaults to $CMS_PATH/SITECONF/T0_CH_CERN/JobConfig/site-local-config.xml
      * The PoolSource gets an override TFC parameter set during configuration manipulation, the override TFC is in $CMS_PATH/SITECONF/T0_CH_CERN/JobConfig/
   * To support the test mode, suggestion is to create T0_CH_CERN_EOS and make the override for the T0 configurable so that one can chose to use the TFC and override TFC from either T0_CH_CERN and T0_CH_CERN_EOS

---++ Future plans

   * When the TransferSystem is able to copy files to EOS, move /store/streamer and /store/t0streamer to EOS to benefit from better replication and larger spread over disk servers to allow for higher throughput

Topic revision: r1 - 2012-11-21 - OliverGutsche

CMSPublic

Create a LeftBar

Public webs

- Cern Search
- TWiki Search
- Google Search
CMSPublic All webs

Copyright &© 2008-2022 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
or Ideas, requests, problems regarding TWiki? use Discourse or Send feedback