HiRDB Datareplicator Version 8 Description, User's Guide and Operator's Guide

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3.5.1 Purpose of a Datareplicator file system area

The minimum size of a UNIX character special file is 1MB. If you allocate a source Datareplicator file to a UNIX character special file, the storage efficiency would be poor because there would be more space than needed. The Datareplicator file system area makes it possible to manage file areas efficiently, avoiding poor storage efficiency.

By defining Datareplicator file system areas, you can place multiple files used by Datareplicator (including system files) in a single character special file. The following figure shows the relationship between a Datareplicator file system area and Datareplicator files.

Figure 3-31 Relationship between a Datareplicator file system area and Datareplicator files

[Figure]

Organization of this subsection
(1) Files that can be stored in Datareplicator file system areas

(1) Files that can be stored in Datareplicator file system areas

The following table lists the system files that can be stored in Datareplicator file system areas.

Table 3-16 Files that can be stored in Datareplicator file system areas

Type of Datareplicator Files that can be stored
Source Datareplicator Extraction server status file
Extraction information queue files
Data linkage file
Target Datareplicator Import status files
Import information queue files