Timed data transfer between a host system and a memory sub-system

A method, comprising:

• determining, by a device having a memory and media units operable independent from each other, a subset of the media units available to execute write commands concurrently;
• controlling buffering of data, from a plurality of streams of write commands, into the memory based on identification of the subset of the media units;
• and
• determining, based on a count of the subset of the media units, a number of units of data.

A non-transitory computer storage medium storing instructions which when executed by a device having a memory and media units operable independent from each other, cause the device to perform a method, the comprising:

• identifying, by the device, a subset of the media units available to execute write commands concurrently;
• determining, based on identification of the subset of the media units, an amount of data;
• buffering no more than the amount of data from a plurality of streams of write commands into the memory;
• executing, using the subset of the media units concurrently, first commands to store the amount of into the subset of the media units;
• placing, in at least one command queue in the device, write commands, including the first commands, that are more than the count of the subset of media units;
• and
• allocating a buffer space in the memory for first data of the first commands in response to the subset of the media units being available to operate concurrently.