Resize Software Raid 5

Hi there,

I very interested in your product but wanted to know a couple of things before purchasing it.

I currently have a server running MS Server 2003 SP1.

1) Will your software be able to resize (increase) the number of disks in a software raid 5 setup using the same size disk? (2TB Drives)

2) Does the resize happen while in windows or does the server need to be rebooted into a "DOS" type environment while doing the resize.

3) Can the array still be accessed while the resize happens?

4) Can I lower the priority of the resizing two speeds up access to the disks or schedule the resizing to take place between certain times.

Thank you for your assistance in advance.