Electronic Logbooks - LHCb Online

Olivier Callot 5 June 2007

Electronic Logbooks  Why

moving away from Atlog ?  Proposed improved configuration  Release schedule

Why moving away from Atlog ? Elog

is the original software

Developed and maintained at PSI by Stefan Ritt  Tested in summer 2005 by Tobias Lohe, summer student. 

 Limitation

Atlog 

is an Atlas modification of Elog

Use Oracle as storage for entries, instead of the file system  Remove



if over 100,000 entries…

the performance limitation for big logbooks

It has been installed at the Pit with two servers, one for inside the LHCb pit network, one for outside access  Many

logbooks pre-installed  Some already used, with few (