Documentation

mc support diag

SUBNET Registration Required

The mc support commands are designed for MinIO deployments registered with MinIO SUBNET to ensure optimal outcome of diagnostics and performance testing. Deployments not registered with SUBNET cannot use the mc support commands.

Command History

The command used to create the diagnostic report has changed over time.

MinIO Client Release

Command

Notes

RELEASE.2020-10-03T02-54-56Z

mc admin health

First available

RELEASE.2020-11-17T00-39-14Z

mc admin subnet health

Command made a SUBNET subcommand

RELEASE.2022-02-13T23-26-13Z

mc support diag

Command moved to mc support

Description

The mc support diag command generates a health report for a MinIO deployment.

For deployments registered with the MinIO subscription network (SUBNET), the command generates and uploads the health report for analysis. Optionally, automate generating and uploading the report every 24 hours by enabling callhome.

The resulting health report is intended for use by MinIO Engineering via 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.

MinIO recommends that you run the health diagnostics when first provisioning the cluster and again at any failure scenario.

Use the mc support diag command to trigger the diagnostic test. For clusters registered with SUBNET, the command uploads the results as part of SUBNET Health reports.

For airgapped or firewalled environments, or other environments that prevent direct network access from the deployment, you can save the report locally with the --airgap flag. After saving, you can then upload the results of the test to SUBNET manually.

Sample Output

● CPU Info ... ✔
● Disk Info ... ✔
● Net Info ... ✔
● Os Info ... ✔
● Mem Info ... ✔
● Process Info ... ✔
● Server Config ... ✔
● System Errors ... ✔
● System Services ... ✔
● System Config ... ✔
● Admin Info ... ✔
*********************************************************************************
                                WARNING!!
     ** THIS FILE MAY CONTAIN SENSITIVE INFORMATION ABOUT YOUR ENVIRONMENT **
     ** PLEASE INSPECT CONTENTS BEFORE SHARING IT ON ANY PUBLIC FORUM **
*********************************************************************************
mc: MinIO diagnostics report saved to myminio-health_20231111053323.json.gz

The gzipped output contains the requested health information.

Examples

Generate Health Data for a Cluster and Automatically Upload to SUBNET

Generate health data for a MinIO cluster and automatically for a MinIO cluster at alias minio1 for transmission to SUBNET.

mc support diag minio1

The automatic upload of data only occurs for deployments registered with SUBNET using mc license register.

Generate Health Data for a Cluster to Upload Manually

Generate a diagnostic report for a MinIO deployment at alias minio2 and save it for manual upload to SUBNET:

mc support diag minio2 --airgap
  1. Run the command to download the .gzip file

  2. Login to https://subnet.min.io and select the Deployments section

  3. Select the deployment for the report

  4. Select the Upload button

  5. Drag and drop the file or browse to the .gzip file location to upload it

Upload Data to SUBNET with Strict Anonymization

Generates health data for a MinIO cluster at alias myminio and anonymizes all sensitive data, including host names.

mc support diag myminio --anonymize=strict

Syntax

The command has the following syntax:

mc [GLOBALFLAGS] support diag                   \
                         ALIAS                  \
                         [--airgap]             \
                         [--anonymize=<string>] \
                         [--api-key string]

Parameters

ALIAS
Required

The alias of the MinIO deployment.

--airgap
Optional

Use in environments without network access to SUBNET (for example, airgapped, firewalled, or similar configuration). Generates the diagnostic report and saves it to the location where you ran the command.

You must manually upload the report to SUBNET.

For instructions, see the airgap example.

If the deployment is airgapped, but the local device where you are using the minio client has network access, you do not need to use the --airgap flag.

--anonymize

New in version mc: RELEASE.2023-11-10T21-37-17Z

MinIO anonymizes data loaded to SUBNET. Beginning with mc RELEASE.2023-11-10T21-37-17Z, MinIO does not anonymize host names. This is the default standard anonymization mode.

Valid values are =strict or =standard.

To anonymize all data, including host names, pass this parameter with the strict mode.

mc support diag minio --anonymize=strict
--api-key
Optional

Takes the account’s API key value from SUBNET.

This value is only required for airgapped environments where MinIO has not already stored the API key for the deployment.

Global Flags

This command supports any of the global flags.