System Management Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

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System Management Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

Monitor mount points

Updated: June 12, 2026

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A mount-point provides access to additional file systems and is fundamental for managing storage resources.

The mount-points is a container in the OpenConfig YANG model that

  • monitors the list of mount points or file systems on the router

  • provides details for each file system, including its name, storage component, type, total size, available, and utilized space, and

  • supports the streaming of operational data through Model-Driven Telemetry (MDT) and Event-Driven Telemetry (EDT).

Table 1. Feature History Table

Feature Name

Release Information

Feature Description

Monitor mount points

 Release 26.1.1

Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700 [ASIC: P100, K100], 8010 [ASIC: A100]); Centralized Systems (8600 [ASIC: Q200]); Modular Systems (8800 [LC ASIC: Q100, Q200, P100])

You can prevent service disruptions by having a clear visibility into your router's storage resource allocation and usage. Adequate disk space is crucial for preventing application crashes, ensuring successful upgrades, and maintaining optimal router performance.

This feature provides detailed information about the file system's name (mount point), storage component (file system type), total size, available space, and utilized space, allowing you to monitor and manage disk space effectively.

This feature introduces these changes:

CLI:

YANG Date Model:

  • openconfig-system:system/mount-points

Both Model-Driven Telemetry (MDT) and Event-Driven Telemetry (EDT) are supported.

(See GitHub, YANG Data Models Navigator)

Restrictions for mount-point state monitoring

You must follow these restrictions when performing monitoring or operational reporting from mount points:

  • Mount-point state monitoring is supported only on these file systems: ext2, ext4, tmpfs, devtmpfs, fuse.tftp_fs, and fuse.ftp_fs.

  • If you create mount points dynamically, you must create them within the XR namespace to:

    • enable streaming through the OpenConfig system model, and

    • ensure display in the show filesystem detail CLI output.

    For example, create mount points using PID 1 namespace inheritance by running nsenter -t 1. This command ensures the mount point is created in the XR namespace.