Network settings for IBM Storage Protect

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When you are using IBM Storage Protect™ with Data Protection for SAP, you can improve performance by making updates to the configuration files. Before you edit configuration files, save a backup copy.

The performance adjustments for IBM Storage Protect are completed by editing the following files:

IBM Storage Protect server option file dsmserv.opt
IBM Storage Protect backup-archive client option file dsm.sys (UNIX™ and Linux™ systems), or server.opt (Windows™ systems).

This table shows the corresponding IBM Storage Protect configuration file attributes with the values.

Table 1. Tuning IBM Storage Protect configuration file attributes
Attributes	Value	Description
`TCPBuffsize`	`32`	Specifies the size, in KB, of the buffer that is used for TCP/IP send requests. This option affects whether IBM Storage Protect sends the data directly from the session buffer or copies the data to the TCP buffer. A buffer size of 32 KB forces IBM Storage Protect to copy data to its communication buffer and flush the buffer when it fills.
`TCPNODelay`	`YES`	Specifies whether the server is to send small amounts of data or allow TCP/IP to buffer the data. Disallowing buffering might improve throughput but more packets are sent over the network.
`TCPWindowsize`	`640 (AIX)` `63 (others)`	Specifies the size, in KB, which is used for the TCP/IP sliding window for the client node. This size is used when data is sent or received. The range of values is 0 - 2048.