. . . snip . . .
my $nfshashofhashes = {
    "rtsys_mpt" => {
        '%export_name' => '/bb/rtsys',
        '%filer_device' => {
            '@west' => 'nydevnfs_rtsysgit',
            '@ridge' => 'njdevnfs_rtsysgit',
        },
        '%filer_volume' => '/vol/rtsysgit',
    },
    "bigstorderv_mpt" => {
. . . snip . . .

##</code><code>##

$ perl 1028644.pl
bigstorderv_mpt      nydevnfs_derv        /vol/derv            /bb/bigstor/derv
build11_mpt          ????                 /vol/sunbbsource_c   /bb/source
build11_mpt          rnap7751-s           ????                 /bb/source
build11_mpt          ????                 /vol/sunquirks       /bb/source
build11_mpt          nydevnfs_sunbbsource /vol/sunbbsource     /bb/source
build10_mpt          rnap7751-s           /vol/sunbbsource_c   /bb/source
build10_mpt          nydevnfs_sunbbsource /vol/sunbbsource     /bb/source
rtsys_mpt            njdevnfs_rtsysgit    /vol/rtsysgit        /bb/rtsys
rtsys_mpt            nydevnfs_rtsysgit    /vol/rtsysgit        /bb/rtsys
bigstormtg_mpt       njdevnfs_mtge        /vol/mtge            /bb/bigstor/mtgmodel
bigstormtg_mpt       nydevnfs_mtge        /vol/mtge            /bb/bigstor/mtgmodel