3525427 - What is Swap Space? How does it function?

Poor swap space setup in SAP can lead to several performance and stability issues. Here are some common symptoms to watch out for:

Symptoms of Poor Swap Space Setup

1. System Slowness:

   • Symptom: The system becomes noticeably slow, especially during peak usage times.

2. High CPU Usage:

   • Symptom: CPU usage spikes frequently, even when the workload is not particularly high.

3. Frequent Freezing or Crashes:

   • Symptom: The system or specific applications freeze or crash unexpectedly.

4. High Disk I/O:

   • Symptom: Disk I/O operations are consistently high, leading to slow read/write speeds.

5. Low Free Swap Space:

   • Symptom: Monitoring tools (e.g., ST06 in SAP) show low or zero free swap space.

6. Memory Allocation Errors:

   • Symptom: Errors related to memory allocation appear in system logs or application logs.

SAP NetWeaver Application Server

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