The mc tree command lists all prefixes inside an MinIO AIStor bucket in a tree format. The command optionally supports listing all objects inside of bucket at each prefix, including the bucket root. You can also use mc tree against a local filesystem directory to produce similar results to the tree command-line tool. Syntax Example The following command prints a complete tree of all objects at any depth in the mydata bucket on the myaistor MinIO AIStor deployment:

The mc table share command manages MinIO AIStor Table Share configurations on MinIO AIStor clusters. Table Sharing allows you to share table data with external consumers using a standard open protocol. Each share configuration describes a group of tables and access control tokens that gate access to the shared data. Update to at least RELEASE.2026-02-19T10-32-25Z to access Delta Sharing features. Subcommands mc table share includes the following subcommands:

This page documents environment variables for configuring MinIO AIStor to use drive-level cache for frequently accessed objects. When enabled, MinIO AIStor caches the metadata of accessed objects to node memory on PUT and GET requests. When the available memory reaches capacity, MinIO AIStor ejects the oldest last-accessed object from the cache. This keeps the most frequently accessed objects in the cache. Cache configuration settings control fundamental MinIO AIStor behavior and functionality. Test configuration changes in a lower environment, such as DEV or QA, before applying to production. Enable Environment Variable MINIO_CACHE_ENABLE Configuration Setting There is no configuration setting for this variable, as these settings apply at server startup. Set to on to use the drive cache feature.

The mc table show command displays metadata for an Iceberg table on an MinIO AIStor cluster. mc table info is an alias for this command. The output includes the table schema, properties, the table’s UUID, and other metadata. The metadata output includes the table’s UUID, which is the identifier used in IAM table ARNs of the form arn:aws:s3tables:::bucket/{warehouse}/table/{uuid}. The UUID is stable across renames, so UUID-based policies continue to apply even if the table is renamed. For details on using the UUID in policies, see Controlling access to MinIO AIStor Tables.

This section documents settings that control behavior related to MinIO AIStor metrics and logging. See Metrics and Alerts for more information. You can establish or modify settings by defining: an environment variable on the host system prior to starting or restarting the AIStor Server. Refer to your operating system’s documentation for how to define an environment variable. a configuration setting using mc admin config set. If you define both an environment variable and the similar configuration setting, MinIO AIStor uses the environment variable value.

The mc table command manages MinIO AIStor Tables on MinIO AIStor clusters. MinIO AIStor Tables implements native Iceberg tables support in MinIO AIStor object storage, allowing you to create, manage, and query Iceberg tables directly through MinIO AIStor with no dependencies on external catalog services or metadata databases. MinIO AIStor introduces support for Tables in minio RELEASE.2026-02-02T23-40-11Z and mc version RELEASE.2026-02-03T00-12-26Z. Subcommands mc table includes the following subcommands:

This page documents settings for configuring an Elasticsearch service as a target for Bucket Notifications. See Publish Events to Elasticsearch for a tutorial on using these settings. You can establish or modify settings by defining: an environment variable on the host system prior to starting or restarting the AIStor Server. Refer to your operating system’s documentation for how to define an environment variable. a configuration setting using mc admin config set. If you define both an environment variable and the similar configuration setting, MinIO AIStor uses the environment variable value.

The mc undo command reverses changes due to either a PUT or DELETE operation at a specified path. Syntax Example The following command reverts the last three uploads and/or deletions of the file.zip object on the myaistor deployment in the data bucket:

The mc support telemetry replay command replays a file of telemetry data to an OpenTelemetry collector. You can record a file to replay later with mc support telemetry record. Syntax Example The following command replays a local file of telemetry data to a localhost OTLP server.

mc support upload copies a file from the local file system to a SUBNET ticket. Syntax The command has the following syntax: mc [GLOBALFLAGS] support profile \ ALIAS \ FILE \ [--comment "string"] \ [--enc] \ [--issue integer] Parameters ALIAS Required