Other mount_nfs deadthresh option missing

[scotia]

Hi all,

the man page of mount_nfs shows a -D option and a -o deadthresh option. However running the command on 12.2 shows:

# mount_nfs -D 1 server:/path /path
-D deprecated, use -o deadthresh=<value>                                                     
mount_nfs: nmount: /path, mount option <deadthresh> is unknown: Invalid argument

Is this just an issue with the man page?

I'm trying to decrease the time it takes for an NFS mount to be considered broken and was thinking this is right option.