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The mc support diag command generates a health report for an MinIO AIStor deployment. The command generates and uploads the health report to SUBNET for analysis. Automated with Call Home The report is automatically generated and uploaded every 24 hours with Call Home, which can be disabled or enabled at any time. The resulting health report is intended for use by MinIO Engineering through SUBNET and may contain internal or private data points. Exercise caution before sending a health report to a third party or posting the health report in a public forum.

The mc pipe command streams content from STDIN to a target object. Syntax Example The following command writes contents of STDIN to an S3 compatible storage.

Version added This command was added in AIStor Client RELEASE.2025-12-19T20-11-44Z and requires AIStor Server RELEASE.2025-12-20T04-58-37Z or later. For earlier versions, use the manual license file replacement method described in License renewal. The mc license update command updates or renews the license for an MinIO AIStor deployment.

Use the mc support perf command to review the performance of the S3 API (read/write), network IO, and storage (drive read/write). The resulting tests can provide general guidance of deployment performance under S3 GET and PUT requests and identify any potential bottlenecks. For more complete performance testing, consider using a combination of load-testing using your staging application environments and the MinIO Warp S3 benchmarking tool. The command has the following syntax:

The mc replicate rm command removes a replication rule from an MinIO AIStor bucket. The mc replicate remove command has equivalent functionality to mc replicate rm. Syntax Example The following command removes the replication rule with specified id from the mydata bucket on the myaistor MinIO AIStor deployment:

The mc ilm tier rm command removes an remote tier that has not been used to transition any objects. The mc ilm tier remove command has equivalent functionality to mc ilm tier rm Once a tier has transitioned objects, it cannot be permanently returned to the original tier. To temporarily return objects to the original tier, use mc ilm restore.

The mc idp openid accesskey enable enables the specified access key on the local server. Example and syntax Example The following example enables the access key mykey from the myaistor deployment:

The mc put command uploads objects from a local filesystem to an MinIO AIStor deployment. You can also use mc put to upload objects to S3-compatible services. Syntax Example The following command uploads a file from the local filesystem to the myaistor deployment:

The mc retention command configures the Write-Once Read-Many (WORM) locking settings for an object or object(s) in a bucket. You can also set the default object lock settings for a bucket, where all objects without explicit object lock settings inherit the bucket default. Subcommands mc retention includes the following subcommands: