NFS and /etc/exports

Robert Blayzor rblayzor.bulk at inoc.net
Tue Apr 15 00:04:21 UTC 2008


On Apr 14, 2008, at 7:28 PM, Alfred Perlstein wrote:
>
>> Are -r and -w really needed/useful for TCP mounts?
>
> yes.


Really?  Please explain then, because the mount_nfs man page  
contradicts this...

"Set the read data size to the specified value.  It should nor-
  mally be a power of 2 greater than or equal to 1024.  This should
  be used for UDP mounts when the ``fragments dropped due to
  timeout'' value is getting large while actively using a mountpoint."

and

"Set the write data size to the specified value.  Ditto the comments  
w.r.t.
  the -r option, but using the ``fragments dropped due to timeout''  
value on
  the server instead of the client.  Note that both the -r and -w  
options should
  only be used as a last ditch effort at improving performance when  
mounting servers
  that do not support TCP mounts."


-- 
Robert Blayzor, BOFH
INOC, LLC
rblayzor at inoc.net
http://www.inoc.net/~rblayzor/

Mac OS X. Because making Unix user-friendly is easier than debugging  
Windows.








More information about the freebsd-stable mailing list