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