Creating filesystem on new LUN

Linux and Unix-Like Red Hat
1

I'm new to linux and need information on how do I create a filesytem on a dedicated on LUN for RHEL 4 and 5? I want the filesystem to be a ext3

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Found the answer. This thread can be closed.

2

Just a caveat to be aware of. If you are not using udev, or disk-id or such, the path to the device can change on reboot. I'd suggest you mount it that way.