As much as I love OpenBSD for the things that it is good at, I avoid it for the things that it is not good at. When it comes to disk management, Linux wins hands-down. Check out LVM. To get this kind of functionality anywhere else you'd have to give a lot of money to Veritas. And I'm doubtful that it's even available for OpenBSD.
Just for comparison's sake, you can get LVM's functionality on FreeBSD, with a package called Vinum. Unfortunately, it is perhaps the most finikey piece of OSS software I have had the displeasure of playing with. It is quite difficult to learn, and you're sure to crash your box repeatedly while learning it. The command interpreter doesn't do hardly any sanity checking on the inputs you give it, and when you ask it to do something that's illogical, it will lock the machine, kernel and all. I had trouble coming at it as someone who has used Veritas products in the past, and is quite familiar with LVM concepts. It was still a bear to use, and still makes me sweat every time I have to reconfigure a volume.
Aaron S. Joyner -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc
