Abstract: A system includes a memory device, and a processing device, operatively coupled with the memory device, to perform operations including receiving a media access operation access command to perform a media access operation with respect to a memory location residing on the memory device, determining whether there exists another memory location access at the memory location, in response to determining that another memory location access exists at the memory location, determining whether the media access operation command is a read command, and in response to determining that the media access operation is a read command, servicing the media access operation command from a media buffer. The media buffer maintains data associated with the completed write operation.

Abstract: A method includes providing, via a command, a request of enablement of a media management operation to a memory sub-system. The method further includes providing, via the command, an indication of one of a plurality of write types to the media management operation to the memory sub-system. The media management operation can be performed using the indicated write type in response to receipt of the command.

Abstract: A request to program a set of host data items to management units (MUs) of a fault tolerant stripe associated with a memory sub-system is received. A set of memory access operations to be executed at the MUs of the fault tolerant stripe in accordance with the received request is determined. The set of memory access operations include one or more read operations to read data from the MUs of the fault tolerant stripe. The set of memory access operations also include one or more write operations to write the set of host data items and redundancy metadata associated with the set of host data items to MUs of the fault tolerant stripe. A first series of commands corresponding to the one or more read operations of the set of memory access operations is executed. The redundancy metadata associated with the set of host data items is generated based on the data read from the MUs of the fault tolerant stripe during execution of the first series of commands and the set of host data items.

Abstract: Methods, systems, and devices for scheduling command execution are described. A memory sub-system can schedule command execution according to a type of command received. For a read operation, a memory sub-system can receive read commands for multiple memory dice. The memory sub-system can select a first memory die and execute a first set of read commands associated with the first memory die. The memory sub-system can then select a second memory die and execute a second set of read commands associated with the second memory die.

Abstract: Responsive to receiving a table flush command, a first portion of an address mapping table is identified. A first flush operation with respect to a first portion of the address mapping table is performed. Responsive to receiving at least one memory access command, flush operations for a subsequent portion of the address mapping table is suspended. At least one memory access operation specified by the at least one memory access command is performed. A second flush operation with respect to the subsequent portion of the address mapping table is performed.

Abstract: Methods, systems, and devices for cryptographic key management are described. A memory device can issue, by a firmware component, a command to generate a first cryptographic key for encrypting or decrypting user data stored on a memory device. The memory device can generate, by a hardware component, the first cryptographic key based on the command. The memory device can encrypt, by the hardware component, the first cryptographic key using a second cryptographic key and an initialization vector. The memory device can store the encrypted first cryptographic key in a nonvolatile memory device separate from the hardware component.

Abstract: An example memory sub-system includes one or more memory devices and a processing device, operatively coupled to the one or more memory devices.

Abstract: In an embodiment, a system includes a plurality of memory components and a processing device that is operatively coupled with the plurality of memory components. The processing device includes a host interface, an access management component, a media management component (MMC), and an MMC-restart manager that is configured to perform operations including detecting a triggering event for restarting the MMC, and responsively performing MMC-restart operations that include suspending operation of the access management component; determining whether the MMC is operating, and if so then suspending operation of the MMC; resetting the MMC; resuming operation of the MMC; and resuming operation of the access management component.

Abstract: Data to be stored at a memory sub-system can be received from a host system. A portion of the host data that includes user data and another portion of the host data that includes system metadata can be determined. A mapping for a data structure can be received that identifies locations of the data structure that are fixed with respect to an encoding operation and locations of the data structure that are not fixed with respect to the encoding operation. The data structure can be generated for the user data and system metadata based on the mapping, and an encoding operation can be performed on the data structure to generate a codeword.

Abstract: A system includes a processing device, operatively coupled with a memory device, to perform operations including receiving a media access operation command designating a first memory location, and determining whether a first media access operation command designating the first memory location and a second media access operation designating a second memory location are synchronized, after determining that the first and second media access operation commands are not synchronized, determining that the media access operation command is an error flow recovery (ERF) read command, in response to determining that the media access operation command is an ERF read command, determining whether a head command of the first queue is blocked from execution, and in response to determining that the head command is unblocked from execution, servicing the ERF read command from a media buffer maintaining previously written ERF data.

Abstract: A processing device in a memory sub-system detects a preemptive power loss condition in the memory sub-system and, in response, causes operations of a local media controller associated with a memory device in the memory sub-system to be suspended, wherein responsive to being suspended, the local media controller to perform power loss handling operations to complete a subset of a plurality of pending memory access operations, and wherein to perform the power loss handling operations, the local media controller to complete the subset of the plurality of pending memory access operations for which an acknowledgment signal has been sent to a requestor. The processing device further detects a full power loss and restore condition in the memory sub-system, responsive to detecting the full power loss and restore condition, initializes the memory device and causes operations of the local media controller to resume.

Abstract: Systems and methods are disclosed including a memory device and a processing device, operatively coupled with the memory device, to perform operations comprising: receiving a write data request to store write data to the memory device; determining a physical block address associated with the write data request; performing a bitwise operation on each bit of the physical block address to generate a seed value; generating an output sequence based on the seed value; performing another bitwise operation on the output sequence and the write data to generate a randomized sequence; and storing, on the memory device, the randomized sequence.

Abstract: System and methods are disclosed including a plurality of memory devices and a processing device, operatively coupled with the plurality of memory devices, to perform operations comprising: receiving, from a host system, encrypted write data appended with error-checking data; determining whether the encrypted write data contains an error based on the error-checking data; and responsive to determining that the encrypted write data contains an error, notifying the host system that the encrypted write data contains an error.

Abstract: A memory sub-system performs a first media management operation among a plurality of individual data units of a memory device after a first interval, the first media management operation comprising a first algebraic mapping function, and performs a second media management operation among a first plurality of groups of data units of the memory device after a second interval, wherein a first group of the first plurality of groups comprises the plurality of individual data units, the second media management operation comprising a second algebraic mapping function.

Abstract: A logical-to-physical (L2P) data structure and a physical-to-logical (P2L) data structure are maintained. The L2P data structure comprises table entries that map a logical address to a physical address. The P2L data structure comprises data entries that map a physical address to a logical address. The P2L data entries also comprise a data move status, a base address, and a boundary indicator. A move operation is detected, wherein the move operation indicates that data referenced by a logical address is to be moved from a source physical address to a destination physical address. Responsive to detecting the move operation, the data move status associated with the source physical address in the P2L data structure is updated.

Abstract: A first command directed to a first package of a plurality of memory packages, wherein the first command is issued to a command processor to be applied to the first package is received. A total number of pending commands directed to the first package satisfies a first threshold criterion is determined. Responsive to determining that the total number of pending commands directed to the first package satisfies the first threshold criterion, whether a second command directed to a second package is requesting transmission is determined. Responsive to the second command directed to the second package is requesting transmission, whether the first command comprises a write command is determined. Responsive to determining that the first command comprises a write command, execute a command directed to the second package.

Abstract: A system includes a plurality of memory dice and a processing device coupled to the plurality of memory dice. The processing device is to determine whether an error correcting code (ECC) check of ECC-protected data read from a die of the plurality of memory dice results in detecting an error. In response to detecting the error from the ECC-protected data, the processing device performs a confirmation check that the error is a result of a defect in the die. In response to the confirmation check confirming the die is defective, the processing device ignores a temperature value from the die when determining whether to trigger a thermal-related operation.

Abstract: A programming operation is performed on a first set of memory cells addressable by a first wordline (WL), wherein the first set of memory cells are comprised by an open translation unit (TU) of memory cells. It is determined that a second set of memory cells comprised by the open TU are in a coarse programming state, wherein the second set of memory cells is addressable by a second WL. In response to determining that the second set of memory cells satisfies a threshold criterion, a programming state verify level associated with the second WL is reduced by a verify level offset. A programming state gate step size associated with each WL of the open TU is reduced by a predefined value. A programming operation is performed on the second set of memory cells using the reduced programming state verify level and the reduced programming state gate step size.

Abstract: A threshold criterion of a plurality of threshold criteria is identified based on a current program-erase cycle (PEC) count of a first block of a memory device, wherein the first block is configured as quad-level cell (QLC) memory. A raw bit error rate (RBER) associated with data of a second block of the memory device is determined, wherein the second block is configured as single-level cell (SLC) memory. It is determined that the RBER associated with the data of the second block satisfies the threshold criterion. In response to determining that the RBER satisfies the threshold criterion, the data of the second block is written to the first block.

Abstract: In one embodiment, a processing device is coupled to memory components to monitor host read operations and host write operations from a host device coupled to the plurality of memory components. The processing device schedules, using a variable size internal command queue, a predetermined proportion of back-end processing device read and write operations as internal management traffic proportional to a number of the host read operations and a number of the host write operations. The processing device then executes a subset of the host read operations and the host write operations. Following execution of the subset of the host read operations and the host write operations, the processing device executes an internal management traffic operation based on the predetermined proportion.