System Setup and Software Installation Guide for Cisco NCS 1014, IOS XR Releases 26.x.x

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System Setup and Software Installation Guide for Cisco NCS 1014, IOS XR Releases 26.x.x

Process Memory Management

Explains how to manage core dump storage in Cisco IOS XR by configuring disk usage limits and automated cleanup processes. It enables administrators to maintain system reliability and prevent disk space exhaustion by controlling the retention of diagnostic files during system crashes.


This chapter describes memory management processes.

Process memory management refers to the efficient allocation and isolation of memory for individual processes within the modular operating system. Each process runs in its own protected memory space to ensure stability and prevent interference.

Dynamic memory allocation leverages segments like code, data, stack, heap, and shared memory for process execution.

Table 1. Feature History Table

Feature Name

Release

Description

Core dump folder limit

Cisco IOS-XR Release 26.1.1

You can now set disk storage limits to 20% to prevent excessive core dumps, and a new folder limit retains up to 20 coreinfo files. The system automatically cleans up every 15 minutes, ensuring efficient use of disk space and preserving resources for critical operations. This process provides better disk management and enhanced system reliability with configurable storage limits and automated cleanup.

CLI:

  • The command exception disk-usage-limit is introduced.

YANG data model:

  • Cisco-IOS-XR-sysadmin-dumper.yang