Help with resizing RAID 1 array!

[pacorod]

Originally, I had two 160 GB drives making up a RAID 1 volume. I then upgraded one drive to 300 GB and rebuilt the RAID 1 array, which resulted in no RAID 1 array volume size increase...it was still a 160 GB RAID 1 array. Then, I replaced the remaining 160 GB drive and installed a 320 GB drive. I rebuilt the RAID 1 volume again. I was expecting a jump in RAID 1 volume size from 160 GB to 300 GB, but to my surprise, it remained at 160 GB!

Both drives currently installed are Seagate Barracuda Serial ATA drives. Intel's Storage Utility (software I use to manage the RAID 1 array) recognizes they are of 300 GB and of 320 GB capacities, respectively, but it lists the RAID 1 array as having a 160 GB capacity.

Also, Intel storage utility won't let me break the RAID volume (split the mirror) so I can increase the main partition of one of the disks using Partition Magic.

Can't I just disconnect a hard drive from the computer, resize the partition in the remaining connected hard drive using Partition Magic, reconnect the hard drive I previously disconnected, and then rebuild the Raid 1 array using Intel Storage Utility? Please help!

[turing111]

As far as I know the RAID array is set when you install Windows.

If your System Root (usually C: ) is on the array then you cannot change it short of reinstalling Windows.

Also the disk size must be exactly the same.

I might of course be wrong and if so hopefully someone else will tell us so.

Also please reply to this thread for this issue rather than starting new ones. Thanks.