Hi list,

The environment is TSM Server 5.5 running on a Windows 2003 box with a IBM 
ULT3580-TD4 SCSI (2 drives) connected.

There is a backup stgpool process running on background for more than 12 hours 
(several schedules were missed during this time).

The process is using both drives, one reading the data and the other writing, 
as expected. The problem is that, at some point, both drives stay IDLE for more 
than 20 minutes...then start reading/writing again (for a short time I might 
add).

The process would be long over by now if this was not happening...what could be 
wrong and how can I put the drives to work non-stop, if possible...??

Any process that uses both drives in this fashion, like an EXPORT for example, 
is behaving the same way...

Thanks

Mario