C:\ drive running out of room, temporary boot from 2nd RAID group?

[runlikeanantelope]

I have a Compaq DL380 server with Windows 2000. Drives 0 - 2 is a RAID 5 24GB drive, but I think this server was upgraded from Windows NT so the C:\ Drive is only like 4 GB and was installed as a basic disk so I cannot upgrade to dynamic disk. The c:\ is running out of room, so here is my plan.

1) Put more disks in slot 3-5 and create a 2nd RAID drive
2) Install Windows 2003 Server on new drive and create much larger c:\ drive

So now when the PC boots, it will have a Windows 2000 instance on first RAID group and Windows 2003 and 2nd RAID group that I can choose from

3) Choose Windows 2003 instance
4) Copy any necessary files over to newly created OS
5) format old RAID group and use it as a data drive


Does anyone see anything wrong with this plan? What am I missing? Will I have to change the boot order in BIOS before it will let me choose the 2nd drive to boot from? If I do this, will this instance of the O/S be able to see and read from the 1st drive without formating it first?

 

[djtech2k]

As long as your boot.ini is aware of both OS installs, then you should be able to choose which to boot from. As long as it is not critical to retain the existing OS install, I would say go with it.