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Tivoli Storage Manager for NetWare Backup-Archive Client Installation and User's Guide

Txnbytelimit

The txnbytelimit option specifies the number of kilobytes the client program buffers before it sends a transaction to the server.

Note:
The server can also define and adjust this option during self-tuning operations.
A transaction is the unit of work exchanged between the client and server. Because the client program can transfer more than one file or directory between the client and server before it commits the data to server storage, a transaction can contain more than one file or directory. This is called a transaction group.

This option permits you to control the amount of data sent between the client and server before the server commits the data and changes to the server database, thus changing the speed with which the client performs work. The amount of data sent applies when files are batched together during backup or when receiving files from the server during a restore procedure.

The server administrator can limit the number of files or directories contained within a transaction group using the txngroupmax option; the actual size of a transaction can be less than your limit. Once this number is reached, the client sends the files to the server even if the transaction byte limit is not reached.

Options File

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

Syntax

>>-TXNBytelimit- number----------------------------------------><
 
 

Parameters

number
Specifies the number of kilobytes the client program can buffer together in a transaction before it sends data to the server. The range of values is 300 through 2097152 (2 GB); the default is 2048.

Examples

Options file:
txnb 2048

Command line:
-txnb=2048

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


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