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

Tcpwindowsize

Authorized User

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 UNIX clients.

Options File

Place this option in the client system options file dsm.sys.

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 Solaris the maximum value is 1024. The default is 32.

Note:
Depending on the operating system communication settings, your system might not accept all values in the range of values.

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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