Managing NFS and KRPC Kernel Configurations in HP-UX 11i v3 (762807-002, June 2014)

Caution: HP strongly discourages increasing
nfs3_max_transfer_size_clts above the default value of
32768 as this can cause NFS/UDP requests to fail. Also, if
the NFS client is experiencing NFS READ failures and the
system is reporting "NFS read failed for server
<servername>: RPC: Can’t decode result" errors, this is an
indication that the nfs3_bsize, nfs3_max_transfer_size,
nfs3_max_transfer_size_clts, or nfs3_max_transfer_size_cots
tunable value was changed while NFS filesystems were
mounted. The system administrator must unmount and re-
mount the NFS filesystem to use the new value.