System Setup and Software Installation Guide for Cisco NCS 1010, IOS XR Releases

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Backup ISO image health check

Updated: June 17, 2026

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This section provides details about backup ISO image health checks, including how background audits detect corruption and trigger recovery actions.

Use this reference to understand backup ISO image health check for Cisco NCS 1010.

The backup ISO image health check information includes:

  • The Health Check feature ensures error-free booting of NCS 1010 chassis during disaster recovery operations. NCS 1010 has a partition for disaster recovery where the backup ISO image is stored. The backup ISO image is stored in the chassis SSD.

  • The chassis SSD content is audited against the running software by the install process in the background every 12 hours to detect corruption. If the ISO image is corrupted, the software will recover it by copying from the backup location. If the software fails to synchronize with the chassis SSD, then the Disaster Recovery ISO Image Corruption alarm is raised. See the Troubleshooting Guide for Cisco NCS 1010 to clear the alarm.