Developer Tool Guide

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Sequential Connection Properties

Use a Sequential connection to access sequential data sources. You create a Sequential connection in the Developer tool. You can manage a Sequential connection in the Administrator tool or the Developer tool.

A sequential data source is a data source that PowerExchange can access by using a data map defined with an access method of SEQ. The Data Integration Service connects to the data source through PowerExchange.

The order of the connection properties might vary depending on the tool where you view them.

The following table describes Sequential connection properties:

Option	Description
Location	Node name for the location of the PowerExchange Listener that connects to the sequential data set. The node name is defined in the first parameter of the NODE statement in the PowerExchange dbmover.cfg configuration file.
User name	A user name that has the authority to access the sequential data set.
Password	Password for the specified user name or a valid PowerExchange passphrase. A PowerExchange passphrase can be from 9 to 128 characters in length and can contain the following characters: Uppercase and lowercase letters The numbers 0 to 9 Spaces The following special characters: ’ - ; # \ , . / ! % & * ( ) _ + { } : @ \| < > ? The first character is an apostrophe. Passphrases cannot include single quotation marks (‘), double quotation marks (“), or currency symbols. To use passphrases, ensure that the PowerExchange Listener runs with a security setting of SECURITY=(1,N) or higher in the DBMOVER member. For more information, see "SECURITY Statement" in the PowerExchange Reference Manual . The allowable characters in the IBM IRRPHREX exit do not affect the allowable characters in PowerExchange passphrases. A valid RACF passphrase can be up to 100 characters in length. PowerExchange truncates passphrases longer than 100 characters when passing them to RACF for validation.
Code page	Required. Name of the code page to use for reading from or writing to the sequential data set. Usually, this value is an ISO code page name, such as ISO-8859-6.
Pass-through security enabled	Enables pass-through security for the connection.
Encryption type	Optional. The type of encryption that the Data Integration Service uses. Select one of the following options: None AES Default is None. Informatica recommends that you use Secure Sockets Layer (SSL) authentication instead of configuring the Encryption Type and Level connection properties. SSL authentication provides stricter security and is used by several Informatica products. For more information about implementing SSL authentication in a PowerExchange network, see the PowerExchange Reference Manual .
[Encryption] Level	If you select AES for Encryption Type , select one of the following options to indicate the encryption level that the Data Integration Service uses: 1 . Use a128-bit encryption key. 2 . Use a 192-bit encryption key. 3 . Use a 256-bit encryption key. If you do not select AES for Encryption Type , this option is ignored. Default is 1.
Pacing size	Optional. Amount of data that the source system can pass to the PowerExchange Listener. Set the pacing size if an external application, database, or the Data Integration Service node is a bottleneck. User lower values for faster performance. Minimum value and default value is 0. A value of 0 provides the best performance.
Interpret as rows	Optional Select this option to express the pacing size as a number of rows. Clear this option to express the pacing size in kilobytes. By default, this option is not selected and the pacing size is in kilobytes.
Compression	Optional. Select this option to enable source data compression. By compressing data, you can decrease the amount of data that Informatica applications send over the network. By default, this option is not selected and compression is disabled.
Offload processing	Optional. Controls whether to offload some bulk data processing from the source machine to the Data Integration Service machine. Select one of the following options: AUTO . The Data Integration Service determines whether to use offload processing. Yes . Use offload processing. No . Do not use offload processing. Default is AUTO.
Worker threads	Optional. Number of threads that the Data Integration Service uses to process bulk data when offload processing is enabled. For optimal performance, this value should not exceed the number of available processors on the Data Integration Service machine. Valid values are 1 through 64. Default is 0, which disables multithreading.
Array size	Optional The number of records in the storage array for the worker threads. This option is applicable when you set the Worker Threads option to a value greater than 0. Valid values are 25 to 5000. Default is 25.
Write mode	Optional. Mode in which the Data Integration Service sends data to the PowerExchange Listener. Select one of the following write modes: CONFIRMWRITEON . Sends data to the PowerExchange Listener and waits for a response before sending more data. Select this option when error recovery is a priority. However, this option might degrade performance. CONFIRMWRITEOFF . Sends data to the PowerExchange Listener without waiting for a response. Use this option if you can reload the target table when an error occurs. ASYNCHRONOUSWITHFAULTTOLERANCE . Sends data to the PowerExchange Listener without waiting for a response. This option also enables error detection. This option combines the speed of CONFIRMWRITEOFF and the data integrity of CONFIRMWRITEON. Default is CONFIRMWRITEON .

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Developer Tool Guide

Developer Tool Guide

Sequential Connection Properties

Sequential Connection Properties