isabella232 / diskinfo

Storage device telemetry data collection tool

Contributing

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.

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This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.

Overview

This open source tool is used by Microsoft for collecting telemetry information from storage devices. It is intended to be used by independent hardware vendors (IHVs) to ensure tool compatibility with their devices and to relay the necessary information for Microsoft to collect pertinent vendor unique logs from IHV devices.

By using this tool, IHVs can verify the data being collected is accurate and does not disrupt device performance.

Note: It is understood vendor unique telemetry data can be protected IP, so vendor unique classifier, model, and log page extensions may not be upstreamed to this repository unless vendors choose to. Instead, a private branch can be created by the IHV and extensions shared with Microsoft for integration into Microsoft private branch.

Quick Setup

The tool will automatically scan for physical storage devices on the execution system and output JSON telemetry file per disk in the top level directory by running the following command:

python runner.py

To output to a specific directory:

python runner.py <dir>

To output to the screen:

python runner.py -o

To list discovered devices:

python runner.py -l

To output data for a single device:

python runner.py -d <#>

Compatibility

The tool is currently only compatible with Windows. It relies on WMI infrastructure with WMIC or PowerShell front end for discovering disk on the current machine. It only understands how to collect telemetry for NVMe and ATA storage devices.

Vendor Specific Extensions

To add vendor specific telemetry data, the following changes must occur:

1. Update src/classify.py to ensure the proper function is returned from vendor specific model file (e.g. src.Models.ExampleVendorFile.NVME) based on the Product ID, Bus Type, and Manufacturer info collected by WMIC. This should only need to be done once per model (i.e. not for each additional log page added).
2. Update vendor specific model file (e.g. src/Models/ExampleVendorFile.py) to return a tuple of supported vendor unique log pages based on the function provided in step 1, the model number, and the firmware revision.
3. Add ctypes struct detailing vendor unique log page byte layout (see src/Models/ExampleVendorFile.py for example).