This is from the event log:

Warning 3/3/2004 5:35:31 AM PercPro 571 PERC 2/SC Controller 0, Array Disk 0:6 Sense Key =  5, Sense Code = 24, Sense Qualifier =  0.  If this disk is part of a redundant virtual disk, select the 'Offline' option and then replace the disk.  Then configure a hot spare and it will start the rebuild automatically.  If this disk is a hot spare, select the 'Prepare to Remove' option and then replace the disk.  If this disk is part of a non-redundant disk, you should back-up your data immediately.  If the disk fails, you will not be able to recover the data.

The problem is there are only 6 hard drives 0:0 thru 0:5. Please see my below post refering to how to replace all the hard drives. Can I just right click 'offline' and replace each one? It gives me a warning data may be lost.

Set up is 6 disks - two containers - RAID5