Storage Performance Issues, Monitoring etc.

<!--HTML-->This session will discuss how to improve the performance of tape-backed MSS systems (or what the experiments could/should do to give hints to the system). <P> (experiences, suggestions for dCache and Castor, etc.). <P> See also: { One and the same monitoring tool is needed for tapes for all T1’s. Action on: Jamie Shiers } We have another use case, but this is primarily for CERN. We still have users reading from tape and we didn't know. Actually there are hundreds of tapemounts per day for reading by users and we didn't know. If we would have had any monitoring we would have been able to spot this much earlier. Now we learned for the first time in a presentation by Tim Bell. <P> Example of basic stats:<BR> https://sls.cern.ch/sls/service.php?id=CASTORATLAS_T0ATLAS