Normal RAID behavior when a drive fails:[[BR]]
The drive shows failed 
This drive is replaced
The drive automatically rebuilds
OR
The drive show up as configured and a rebuild can manually be started

Nov 2011
 * ipp064 drive 3 failed Show FAILED and was replaced. Still showed FAILED. This was not normal.  I (Cindy)took the drive offline and put it back online. This is what I have to do for some of my 3ware arrays ( not the ipp 3ware arrays ).  This is what can be done to rebuild a drive that is already part of the array - but not a new drive.  It caused corruption in the data. 
 * ipp058 drive 20 failed, showed FAILED and was replaced.  Still showed FAILED.  Under direction from LSI - who admitted this was not normal - I was able to start rebuild on the new drive.  It rebuilt.  We get a message every 24 hours. '''Controller ID: 0 Reminder: Potential non-optimal configuration due, PD commissioned as Emergency spare: --:--:20'''  LSI stated that marking the drive as an Emergency Spare is normal for this driver, it is a good thing - this warning should not be generated. This is the warning he is asking the engineers about.
 * LSI sends new driver, Gavin installs it on 1pp064 and ipp058.
 * ipp056 drive fails. Gavin installs the driver and reboots the machine.  We replace the drive and it automatically rebuilds. It also generated the warning.