Telemetry Capture System For Storage Systems

A storage controller for controlling storage devices within a data storage system, comprising:

• a host interface, configured to receive data from, and transmit data to, one or more host systems;
• a media interface, configured to transmit data to, and receive data from, the storage devices;
• and
• a processing system coupled with the host interface and the drive interface, configured to:
• generate a telemetry packet;
• provide the telemetry packet to one or more taps via a telemetry path independent of data and control paths within the storage devices;
• capture the telemetry packet in one or more of the taps;
• and
• generate real-time telemetry data based at least on the telemetry packet.

A storage device, comprising:

• a data storage medium;
• and
• a storage controller, coupled to the data storage medium and configured to store data onto the data storage medium;
• the storage controller further configured to:
• generate a plurality of telemetry packets, wherein a telemetry packet is generated for each IO command executed by the storage device, and wherein each telemetry packet comprises:
• identifying information for a type of event;
• identifying information for a source of the telemetry packet;
• event specific payload information;
• a timestamp;
• and
• a sequence number;
• provide the plurality of telemetry packets as a telemetry stream to one or more taps via a telemetry path independent of data and control paths within the storage device;
• capture at least one telemetry packet in one or more of the taps;
• and
• generate real-time telemetry data based at least on the at least one telemetry packet during normal operation of the storage device.