Upgrade

These pages provide best practices and tutorials for upgrading the AIStor server on Linux or Kubernetes infrastructure.

All AIStor software, including Key Manager, supports non-disruptive upgrades with zero downtime.

Using or upgrading AIStor Key Manager requires a valid MinIO Commercial License. If necessary, you can download the current license from SUBNET.

Always make sure to back up the encryption key database before you upgrade. This serves as a protective measure against unexpected or undesired upgrade outcomes. See Backup and Recovery.

Key Manager runs a testing and validation suite as part of all releases. However, no testing suite can account for your production environment’s unique combinations and permutations of hardware, software, and workloads.

Always validate any Key Manager upgrade in a non-critical environment such as Dev, QA, or Staging before applying the upgrade to production deployments, or any other environment containing critical data. Upgrading a production environment without first validating in a less critical environment is done at your own risk.

If your Key Manager deployment is significantly behind the latest stable release – 6+ months or more - consider creating an issue on SUBNET for additional support and guidance during the upgrade procedure.

Key Manager requires only one node to be available for read operations, which is the bulk of requests to Key Manager.

Consult with MinIO support using SUBNET before conducting maintenance operations for additional oversight and guidance.