CentOS - Jun 2018 - multipath recipe for an enclosure ?

hi guys,

In hope that some experts roam around I post this one question - how do 
you multipath disks(all disks) that sit in one specific SAS enclosure? 
Blacklist everything else.

And I'm hoping for something like "globing", so you do not want to
go
through it on by single disk/wwin basis.

some experts?(or maybe even not, it could be that I do not get it)

many thanks, L.