A Phew Good Files

The storage support guys finished integrity checking of 5K ATLAS files held at Lancaster and found no bad files.


This, of course, is a Good Thing™.


The next step is to check more files, and to figure out how implementations cache checksums. Er, the next two steps are to check more files and document handling checksums, and do it for more experiments. Errr, the next three steps are to check more files, document checksum handling, add more experiments, and integrate toolkits more with experiments and data management tools.


There have been some reports of corrupted files but corruptions can happen for more than one reason, and the problem is not always at the site. The Storage Inquisition investigation is ongoing.