Logging System Configuration
Configurable parameters for the transaction log files include: transfer block size, buffer count, full limit, logging memory status, location, name, and number of partitions.
For more details on the logging system, see the User Guide.
Note: Before making changes to the transaction log, Vector must be shut down using the ingstop command, Service Manager, or Visual Manager. This ensures all processes are stopped correctly and completely.
Multiple Log Partition Configuration
Vector allows both the primary and dual transaction log files to exist on multiple devices (up to 16). Vector improves logging system performance by allowing it to write to multiple disk devices and, on 32-bit file systems, allowing the total log file size to be greater than 2 GB.
You can configure multiple log partitions using the log_file_parts parameter. When configuring multiple log partitions, keep the following in mind:
• All log partitions must be the same size
• The primary and dual transaction logs must use the same number of partitions
For instructions on configuring multiple log partitions, see the following topic in Configuration Manager online help:
• Parameters Page, Logging System Component
Primary Transaction Log and Dual Transaction Log
If the Vector installation is running, configurable information on the primary and dual transaction log files is read‑only. If Vector is not running, and no recovery is required from a system failure, various operations are allowed, including editing the log file name, setting the log size per file, and adding, modifying or deleting locations for the primary and dual transaction log files.
For instructions on configuring transaction log parameters, see the following topic in Configuration Manager online help:
• Primary Log Page, Transaction Log Component
Last modified date: 03/21/2024