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Tivoli Storage Manager for Windows Backup-Archive Clients Installation and User's Guide

Tcpwindowsize

The tcpwindowsize option specifies the amount of data in kilobytes that is buffered when receiving data on a TCP/IP connection. To improve backup or archive performance, increase the tcpwindowsize on the server. To improve restore or retrieve performance, increase the tcpwindowsize on the client.

Supported Clients

This option is valid for all Windows clients.

Options File

Place this option in the client options file dsm.opt.

Syntax

>>-TCPWindowsize- window_size----------------------------------><
 
 

Parameters

window_size
Specifies the size, in kilobytes, to use for your client node TCP/IP sliding window.

The range of values is 1 through 2048 for Windows 2000, XP, and Windows.Net only. For Windows Me and Windows NT 4.0, we recommend a maximum value of 63 or less. The default is 32.

Note:
Depending on the operating system communication settings, your system might not accept all values in the range of values. By default, Windows 2000 does not support a value greater then 63KB. Refer to Description of Windows 2000 TCP Features, Microsoft knowledge base, article Q224829, for details regarding TCP features in Windows 2000.

Examples

Options file:
tcpwindowsize 1

Command line:
-tcpw=24

This option is valid only on the initial command line. It is not valid in interactive mode.


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