under /usr/lpp/adsm/bin you should find a file "options.doc"  for the client
tcpwindowsize
    >>--TCPWindowsize--
--window_size---------------------------------------><
    Parameters
    Parameters

    window_size
         The size you want to use, in kilobytes, for the TCP/IP sliding
window
         for your client node. :p The range of values is:

         UNIX, OS/2, Windows NT, and Windows 95    1 to 2048

         NetWare                                   1 to 64

         Macintosh                                 1 to 128


         The default for UNIX, OS/2, NetWare, Windows NT, and Windows 95 is
         32.  The default for Macintosh is 16.


for the server just look in the file /usr/lpp/adsmserv/bin/dsmserv.opt
*   Syntax
*   +------------------+----------------------------------------------+
*   | TCPWindowsize    | window_size                                  |
*   +------------------+----------------------------------------------+
*
*   Parameters
*      window_size       Specifies the TCP/IP windowsize in kilobytes.
*                        You can specify a value from 0 to 2048.
*                        0 indicates that the default window size set
*                        for AIX should be used. Values from 1 to 2048
*                        indicate that the window size is in the
*                        range of 1K to 2M.
*                        The default window size is 0 which indicates
*                        that ADSM should accept the AIX default window
*                        size.

I just use "0" and let it default to what it is set under aix (on the adsm
server)

later,
    DWight


> ----------
> From:         Joel C McCarty[SMTP:jmccarty AT HERTZ DOT COM]
> Reply To:     ADSM: Dist Stor Manager
> Sent:         Tuesday, February 22, 2000 4:16 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      tcpipwindowsize
>
> Anybody have any experience setting tcpipwindowsize option.  The docs
> refer
> to the "ADSM Performance Tuning Guide" for more info but I am unable to
> find this at either the IBM Redbooks site or Tivoli.  By default all
> clients are setup for 16K buffers.  I would like to increase this but the
> highend (2048K)  returns "This size not supported by your platform -
> default size will be used".  I am running ADSM 3.1.2.50 on Aix 4.3.2.  Any
> ideas on a maximum setting ?
>
> Thanks,
>
> Joel McCarty
>