Oracle ASM Disk Free Space

Introduction

Oracle Automatic Storage Management (ASM) is a storage management solution integrated with Oracle databases, designed to simplify and optimize the management of disk storage. ASM eliminates the need for traditional file systems by directly managing disk groups and distributing data across all available storage for balanced performance and redundancy. It provides features like data striping, mirroring, and dynamic storage resizing, ensuring high availability and optimized I/O performance for Oracle databases while reducing administrative overhead.

Monitoring Free Space

To monitor ASM disk free space, the query above retrieves the disk name and free space percentage. This can be integrated into a Custom SQL - Multiple Numeric Alert in DPA. Below is an example of a custom alert configuration: