Glad to see you're willing to learn shell as I suggested earlier in another question. :-)
To put command in background and let it execute there:
yourcommand &
To switch back to that process (if only one background process started):
fg
To list all backgrounded processes:
jobs -l
If you just want to run a command, then another, and then another ....
yourcommand && yourothercommand && youryetanothercommand
The above example would proceed to the next command only if the previous command succeeded without errors. If you don't mind if the previous command succeeded or not, you can do
yourcommand; yourothercommand; youryetanothercommand
Also, command screen will be your new best friend. It allows you to start a process in its own "screen", which you can detach and reattach later, so you can, for example, connect to a server from your company desktop computer, start a screen and let a long-running command run there, detach the session, walk to your company laptop, connect to that server with that, and reattach the session and see what's happened meanwhile.
Anyway, all this is the kind of basics I shouldn't be explaining to you; go and read a tutorial to get started! Just Google for bash tutorials, if your shell is bash. You seem to be using Solaris, so your shell might as well be csh, in that case google for csh tutorials. They are similar to each other, but some differences do apply for example in environment variable stuff.
Best Answer
You can only do this on 64bit Solaris systems. The Solaris 10 newfs manpage has the example below for creating a multi-terabyte UFS filesystem. It looks like the same should work on Solaris 9 8/03 or later. You should look here for information on support and limitations of mutli-terabyte UFS filesystems. There is an example here on the Oracle site that suggests that suggests they can be created directly.