There are no Windows utilities that can see the individual disks, as Windows is not aware of the fact that there are actually two physical disks ... it can only see the single Logical Drive that the PERC presents to Windows.   Dell's OpenManage Server Administrator (OMSA) can be installed and interface with the controller to show both disks, RAID configurations, along with a lot of other system information.  (Download and run to extract files, then run C:\Openmanage\windows\setup.exe.  Choose 'custom' and make sure that Storage Management is installed.) [URL] When you say "'break/re-mirror' all in Windows", you must know that the method for hardware RAID is different than software (Windows-managed) RAID.  You first will need to know for sure if you are dealing with Windows RAID (seen in Disk Management) or hardware RAID (if handled by the PERC, NO RAID should be configured in Windows Disk Management). If you want to replace your 146GB disks with 300GB disks, then you need to use OMSA to 'force offline' one disk, insert replacement, 'assign hot-spare' or 'rebuild' if it doesn't start rebuilding automatically, then do the next one once the first rebuild is complete. Problem:  Once you do this, you will have only two options:  1) a retag to make the array see the entire space of the new, larger disks (you are wise to feel uncomfortable with this idea - it is NOT a good idea), or 2) create a new RAID array across the disks, using the newly available space on the disks.  There is NO way to manually or automatically make the array the size of the new disks - it will remain at 146GB.  This new array will be seen by Windows as a new and separate "disk" in Disk Management, meaning you cannot merge its space with any existing partitions - as far as Windows is concerned, it will be just like you added a second hard drive to the system. If you must have all the space usable in one 300GB array/disk, then you will need to backup, delete your existing RAID 1, create an initialize a new RAID 1 with the larger disks, then restore. "Id 'prefer' to be able to just shut down the machine and replace one of the drives with the new bigger one and power up." IMPORTANT!  If you decide to replace the disks one at a time, just remember this rule of thumb:  If it is hot-swap, swap it hot.  Never shut down the system to replace a disk unless you have no other choice (drives accessible from the outside of the system, and even SAS/SATA drives that are cabled, are hot-swappable).
Server 2003.  Raid 1 mirror with  2x140GB drives.  Partitioned c:12gb and d:124gb  Are their any windows utilities that will show both disks in Disk Management? Im not familiar with Dells PERC setup.  The only drive upgrades ive done on raid 1 in the past I had pulled and replaced a drive, and then did the break/re-mirror all in windows.  I am replacing the two aging, and full 140gb drives with 300gb drives.  Id 'prefer' to be able to just shut down the machine and replace one of the drives with the new bigger one and power up.  Will doing this automatically remirror to the new drive?  Or do I need to go into the Ctrl+M on boot up and do some configuring? Ive read a small bit about "retagging", and I am not very comfortable with that idea.
Increasing drive size on pe 2800 with PERC 4e/di 