I'd like to know if someone can replicate the following problem
with Pathwork's DOS "nft copy ...." command.
It seems that using nft to copy a file from a risc machine running
ultrix 4.2 or 4.2a, the transfer speed is about 2KByte/sec.
Copying the same file from other machines is about 20KB/sec.
The other machines include: VMS, VAX-Ultrix 4.2, Risc Ultrix 4.0.
These results occur with 3Com microchannel boards and old DEPCA
boards. The results are identical also using both 4.0 and 4.1 client
All other DECNet copys between machines do not show this slowdown; it
is only nft copy from the risc 4.2[a ] machines. Nft copying *to*
those machines is not different from any other machine; it is only
copying *from* the risc machine to the PC.
Other kinds of copy from the risc 4.2[a ] machines are not a problem.
When used as file servers, using a DOS copy from those machines is
as fast as the other machines. DECNet copy from a Macintosh client
does not differ significantly from machine to machine. Nft copy
from the VAX-Ultrix machine with its disks NFS mounted from the
risc 4.2a machine is fast, while copying directly from the risc 4.2a
machine is slow.
This problem seems to be a specific interaction between nft copy commands
and risc 4.2 Ultrix. The 4.2 machines have DEC patches installed
for a variety of things including the packet filter patch.
I would appreciate knowing if anyone can replicate this problem, or
has run into it and solved it.