Seems to me that you're trying to do an aweful lot more here than just sticking 5 vaguely related arrays of data into a hash under vague key names?

You're looking to group disk-based information (ie.freespace and bootinfo) for the different drives that constitute a given drive group, together?

If so, you'll probably need more than just a hash of arrays. Something more like a HoHoHs. And some way to relate what lunids and disk tags and service names related to which disk groups.

You might get less hasty answers if you posted examples of the output from each of your five commands.