We run WebSphere and by default it wants to install everything under /usr. While I can understand the default (everyone has a /usr) I would like to move this over to a dedicated volume group called apps and then setup my lv's and fs's here. Our WebSphere Admin doesn't like this because apparently updates become harder when you alter the install paths. He suggested mounting the new vg under /usr/WebSphere...Originally I thought sure but then I started thinking if I did this I would end up creating mounts for every application.

Can I setup a separate volume group (& /lv's/fs's) and link my fs back into /usr?

The reason behind this is because all the WebSphere applications end up being installed in the rootvg and I'd prefer not to keep increasing the space requirements. Bottom line: Goal is when someone types cd /usr/WebSphere, they are no longer on rootvg but on this new appsvg.


Thanks

Sure, just use a symbolic link. Set up something like /newvg/WebSphere. And then do:
ln -s /newvg/WebSphere /usr/WebSphere