Facilitating sequential reads in memory sub-systems

A non-transitory computer-readable storage medium comprising executable instructions which, when executed by a processing device of a controller, cause the processing device to perform operations, comprising:

• receiving a plurality of logical-to-physical (L2P) records, wherein an L2P record of the plurality of L2P records maps a logical block address to a physical address of a memory block on a memory component managed by the controller;
• determining a sequential assist value specifying a number of logical block addresses that are mapped to consecutive physical addresses sequentially following the physical address specified by the L2P record;
• generating a security token encoding the sequential assist value;
• and
• associating the security token with the L2P record.

A non-transitory computer-readable storage medium comprising executable instructions which, when executed by a processing device of a host system, cause the processing device to perform operations, comprising:

• receiving a logical-to-physical (L2P) map comprising a first L2P record and a second L2P record, wherein the first L2P record specifies a first logical block address, a first physical address of a first memory block on a memory component, and a first sequential assist value specifying a number of logical block addresses that are mapped to consecutive physical addresses sequentially following the first physical address, and wherein the second L2P record specifies a second logical block address, a second physical address of a second memory block on the memory component, and a second sequential assist value specifying a number of logical block addresses that are mapped to consecutive physical addresses sequentially following the second physical address;
• issuing, to a memory subsystem, a first read command to read a first plurality of blocks starting from the first logical block address, wherein the first plurality of blocks comprises a first number of blocks that exceeds the first sequential assist value;
• and
• issuing, to a memory subsystem, a second read command to read a second plurality of blocks starting from the second logical block address, wherein the second plurality of blocks comprises a second number of blocks that is less than or equal to the second sequential assist value.