Reactive power management for non-volatile memory controllers

A method of operating a data storage device comprising a central controller and a plurality of channel controllers, the method comprising:

• at the central controller, issuing memory commands to the plurality of channel controllers, each of the channel controllers comprising a command queue for storing the corresponding memory commands for a distinct set of a plurality of sets of non-volatile memory (NVM) devices and providing backlog information;
• at the central controller, receiving the backlog information of the pending memory commands in the command queues;
• and
• adjusting a clock frequency of the central controller and one or more clock frequencies of the plurality of channel controllers based on the backlog information such that the pending memory commands in each of the command queues are below a predetermined threshold level.

A data storage device comprising:

• a plurality of sets of non-volatile memory (NVM) devices;
• a plurality of first means, each first means for storing memory commands for a distinct set of the plurality of sets of NVM devices and for providing backlog information on the pending memory commands;
• a second means for issuing the memory commands to the plurality of first means, and for receiving the backlog information;
• and
• a third means for adjusting a memory command processing throughput of the second means and the plurality of first means, based on the backlog information such that the pending memory commands in each first means are below a predetermined threshold level.