Atlas:Functionnal-test-lyon-oct06

The goal of this test is to check that data produced can be moved between sites (functionnalities are working). It is not a performance measurement yet.

News

• 15 October : Start of the test

Summary

mail from Alexei Klimentov (7 October 2006)

• The next DDM functional test is scheduled for October 2006 after SC4

• We will start to generate data in a week from now (Oct 15th)

• Please update table 'Sites' (DDM ops WiKi Functional test) for your site. Data will be generated only for the sites listed in the table. (DDM ops WiKi : https://twiki.cern.ch/twiki/bin/view/Atlas/DDMOperations)

• Test duration 7 - 10 days

• The test scope (preliminary) :

repeat Step1 and Step2 of the previous test

Step 1: CERN->Tier1->Tier2s data transfer

Step 2: Tier2s->Tier1 data transfer

Bulk data transfer

CERN -> Tier1s

Tier1->Tier2s (2-3 Tier-2s per cloud)

• Data transfer of large 2+GB files (if available)
• Evaluation of data transfer robustness vs dataset size
• FTS open access (data transfer between different clouds)

• Two more functional tests are already scheduled Year 2006 (week 47-48, TBC), and Jan 2007. Probably in January we will try to evaluate data transfer performance.

• several suggestions, comments, questions

• • will we use DDM ops mailing list to discuss test scope or HyperNews ?

• • Tier-1s will need 200-300GB disk space for the October test

• • Tier-2s (if they will participate in bulk data transfer) will need 100-200 GB disk space for the October test

• • There are no special requirements for the SW installation. Run what you are using for SC4