[svlug] Software Raid 1 on different size disks?

[Mark]

Hi everyone,

I have a question regarding software raid. I want to run RAID1 on 2 partitions of 2 different size hard disks (hda1 and hdb1).
While I will try to make them as similar in size as I can, I am not sure if I will be able to get both partitions at the exact same
size up to the last byte, since I am using two entirely different HDs.
Will this be a problem or is md going to handle this automatically and only use the size of the smaller partition as size of the new
raid1 partition?
What is the easiest way to get the partitions sized equally? 

In case it matters: I will be using Fedora Core 4 for this.

Thanks,

MARK