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Quick Start


Information Required for Using Tivoli Storage Manager

This section describes the JCL, data sets, and time coordination used with Tivoli Storage Manager.

Using ASAMPLIB for Installation

Tivoli Storage Manager provides sample JCL in the ASAMPLIB data set that you can modify to help you prepare the server. The following members are available:

ANRALLO1
Allocates and formats the required server data sets.

ANRALLO2
Allocates and formats the required server data sets instead of ANRALLO1 if the SMS address space has been started. ANRALLO2 requires less modification than ANRALLO1.

ANRIDL
Loads the TSM database with interface definitions used by the administrative web interface.

ANRINST
Initializes the TSM server database and recovery log.

ANRSMPOP
Contains a sample server options file.

ANRSTART/ANRPROC
Starts and runs the TSM server in normal mode after it has been installed and initialized.

ASAMPLIB also contains other members that can help you complete other tasks after installation is complete. These members include:

ANRFMT
Allocates and formats a new TSM VSAM linear data set. Also extends the database and recovery log or creates new storage pool volumes. See Administrator's Guide for details.

ANRFMT2
Allocates and formats a new TSM VSAM linear data set instead of ANRFMT if the SMS address space is active. ANRFMT2 requires less modification than ANRFMT. See Administrator's Guide for details.

ANRLEVEL
Determines the level of SVM available on your system.

ANRSIVP
Contains TSM commands for installation verification. See Verifying Your Server Installation.

ANRUSRXA
Contains assembler DSECT that defines the user exit buffer and the record written by the file exit.

ANRUSRXC
Contains a sample user exit for event logging (written in C).

ANRUSRXH
Contains a sample C definition of the user exit buffer and the record written by the file exit.

ANRUSRXS
Contains a sample user exit for event logging (written in Assembler).

ANSCLIST
Contains a sample TSO CLIST for starting a TSO administrative client. See Configuring TSO Administrative Client Using APPC.

ANSPROC
Contains a sample TSO procedure for starting a TSO administrator client. See Configuring TSO Administrative Client Using APPC.

ANSSMPOP
Contains a sample TSO administrative client options file. See Configuring TSO Administrative Client Using APPC.

Region Size for your Tivoli Storage Manager Server

A region size of 256MB (REGION=256M) is recommended for starting the Tivoli Storage Manager server. However, this value can be decreased or increased based on server workload. To determine the optimum value for your installation, monitor server operation and set the region size according to the results.

If the specified region is too small, server performance can be significantly impacted, especially during periods of high server activity. For example, the operating system GETMAIN and FREEMAIN processing can have a major impact on the performance of transaction-oriented applications such as Tivoli Storage Manager. To eliminate or minimize GETMAIN and FREEMAIN calls, the server uses its own method for satisfying storage requests. The ability of the server to avoid calls to the GETMAIN and FREEMAIN procedures is highly dependent on adequate region size for the workload.

When increasing the region size, use 128MB increments until the desired performance is achieved, or until it is clear that the additional storage is yielding improved performance. Once this occurs, you can reduce the region size in small increments (for example, 32 MB), to determine the optimum region size for your workload. It is important that performance be monitored for a period of time and over periods of high activity.

If the desired performance is not achieved after adjusting the region size, consult the Tivoli Storage Manager documentation and Redbooks for performance-related options and suggestions.

A region size of 0M (REGION=0M) is not recommeded. Specifying 0M will result in poor server performance.


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