I have an HP ML380 G5 with 5x146GB disks on a single RAID 5 array. I will shortly be expanding the array by adding 3 more 146GB disks. This is the first time I'm doing something like this so i'd just like some helpful advice.
I will be using the HP Smart Array Utility and they have a PDF file with a step by step how to. Of course, I will be taking a full back before going ahead.
My biggest question would be whether i can expand the array during office hours. I have about 40 people accessing this server as a file/print server. It's a Windows 2003 Standard server. Would it be a BIG stress on the server to rebuild the array during office hours?