Using RAID on Solaris

I believe what you are looking for is a meta-device.  You can setup, and administer a RAID configuration by running 'metatool,' found in the SUNWmd package (for Solaris 7, and I think 2.6 as well).

Basically, you would stripe you disks, creating a meta device.  That meta device is what you would then mount.

Would I have to create multiple meta-devices to mount /usr /opt and of course / ?

First off, I don't typically stripe the root filesystem.  You might want to mirror it, but striping root gets (in my opinion) a little hairy.

I believe what you're asking is "for each filesystem, would I have to create another meta-device?"  If that's the case, yes you would.  A meta-device is basically a big psydo-partition that is composed of several smaller physical partitions (slices), instead of just one.  

Just like a normal partition, once the meta-device is made, you would have to run 'newfs' on the meta-device to make a filesystem out of it.

Does that answer your question, or am I being too general?

That helps, but how would this be done on a new install if it is software RAID?

Also, how would I restore if this system failed? UFSRESTORE if I backed up using UFSDUMP? Would I have to reinstall a system that resembled the one that failed and then restore?

You are right, this is great info. Point increased to 100.

Thank you. I greatly appreciate your help.

Hey, glad I could help.

Shane