Abstract: A storage device may include at least one storage medium, and a controller that may include at least one processor configured to perform an update operation associated with a reclaim unit handle that references at least one reclaim unit of the at least one storage medium, read, based on the update operation, data from a first reclaim unit of the at least one storage medium, and write, based on the update operation, the data to a second reclaim unit of the at least one storage medium. Based on the update operation, the second reclaim unit may be associated with the reclaim unit handle. The first reclaim unit may be associated with the reclaim unit handle. The reclaim unit handle may be a first reclaim unit handle, and the first reclaim unit may be associated with a second reclaim unit handle.

Abstract: A method includes sending an enumeration of a resource unit of the computing device to a first computing system tenant and to a second computing system tenant. The enumeration is sent through a first protocol and indicating a managing protocol associated with managing the resource unit. The method further includes receiving a first request from the first computing system tenant to reserve the resource unit. The first request is received through the managing protocol. The method further includes receiving a second request from the second computing system tenant to reserve the resource unit. The second request is received through the managing protocol. The method further includes sending, to the second computing system tenant, an indication that the resource unit is reserved by the first computing system tenant. The indication is sent through the managing protocol.

Abstract: An apparatus may include a device comprising a controller configured to perform, using a first namespace identifier, a first access of a namespace of the device, wherein the device may be configured to perform, using a second namespace identifier, a second access of the namespace of the device, and wherein the second namespace identifier may include first information to determine the first namespace identifier, and second information to identify the controller. The first information may include the first namespace identifier, and the second information may include a controller identifier for the controller. The second namespace identifier may include the first namespace identifier concatenated with the controller identifier. The controller may include at least a portion of a communication endpoint. The device may further include a second controller configured to perform the second access. The first controller may include a child controller, and the second controller may include a parent controller.

Abstract: An apparatus may include a device including a first controller, and a second controller, wherein the device may be configured to receive, using the first controller, data, apply, to the data, a first protection scheme, and send, from the device, using the second controller, the data having a second protection scheme. The first protection scheme and the second protection scheme may be the same. The second controller may be configured to apply, to the data, the second protection scheme. The first protection scheme may include a first salt, and the second protection scheme may include a second salt. The first salt may be determined by the device, and the second salt may be determined by a user. The method may further include applying, at the device, to controller state information for the first controller, a third protection scheme to generate controller state information having the third protection scheme.

Abstract: Provided is a method for communicating information, the method including determining, by a storage device, that a first region of a source storage includes a storage location including data to be copied from the source storage to a target storage, the first region having a size that is equal to a first granularity size, determining, by the storage device, that a second region within the first region includes the storage location, the second region having a size that is equal to a second granularity size that is less than the first granularity size, determining that the second region is associated with a threshold value, exiting a query pattern that includes the first granularity size and the second granularity size, and sending a results data structure indicating that the second region comprises the storage location.

Abstract: A method includes sending an enumeration of a resource unit of the computing device to a first computing system tenant and to a second computing system tenant. The enumeration is sent through a first protocol and indicating a managing protocol associated with managing the resource unit. The method further includes receiving a first request from the first computing system tenant to reserve the resource unit. The first request is received through the managing protocol. The method further includes receiving a second request from the second computing system tenant to reserve the resource unit. The second request is received through the managing protocol. The method further includes sending, to the second computing system tenant, an indication that the resource unit is reserved by the first computing system tenant. The indication is sent through the managing protocol.

Abstract: An apparatus may include a storage device that may include at least one storage medium and a controller configured to control the at least one storage medium, wherein the controller may be configured to: receive a write command, wherein the write command may indicate a reclaim unit handle; perform, based on the reclaim unit handle, and based on an operation or condition of the storage device, a selection of a reclaim unit of the at least one storage medium; and store, based on the write command, data to the reclaim unit. The storage medium may include a first reclaim group including the first reclaim unit and a second reclaim group including a second reclaim unit of the at least one storage medium, and the selection of the first reclaim unit may include performing a selection of the first reclaim group.

Abstract: A storage device may include at least one storage medium and a controller configured to receive a write command, wherein the write command specifies data and a reclaim unit handle, receive information about the data, and store, based on the reclaim unit handle and the information, the data in a reclaim unit of the at least one storage medium. The information may include access information. The information may include error tolerance information. The information may include data attribute information. The information may include data type information. The controller may be configured to determine the information based, at least in part, on the reclaim unit handle. The controller may be configured to receive an indicator that may be separate from the reclaim unit handle, and determine the information based, at least in part, on the indicator.

Abstract: A method and a memory device are provided. A controller of the memory device retrieves a first command from a host memory. The controller stores a first identifier of the first command in a set-aside buffer of the memory device. The controller retrieves a second command from the host memory.

Abstract: A system and method for host provided address translation cache prepopulation. In some embodiments, the method includes: receiving, by a persistent storage device, a first address translation cache entry; receiving, by the persistent storage device, an input-output command; and executing the input-output command, by the persistent storage device, the executing of the input-output command including performing direct memory access of a memory location at an address calculated based on the input-output command and based on the first address translation cache entry.

Abstract: Systems and methods for processing commands from a host computing device to a storage device are disclosed. The method includes identifying, by the storage device, a command from the host computing device, the command including a logical address; detecting a condition; based on detecting the condition, requesting, by the storage device, translation of the logical address into a physical address; storing, by the storage device, the physical address in a cache; and transferring data according to the command based on the physical address.

Abstract: A method and a memory device are provided. A controller of the memory device retrieves a first command burst from a host memory. The first command burst includes a sequence of one or more commands from a first submission queue. The controller identifies that at least one command in the first command burst is at least one first fused command of a first set of fused commands. The first set of fused commands is to be processed atomically in the memory device, and a remainder of the first set of fused commands is on the first submission queue. The controller stores at least an identifier of the at least one first fused command in a set-aside buffer of the memory device.

Abstract: A method may include receiving, at a device, an indication based on an entry submitted to a queue, obtaining, based on the indication, a measurement for the entry, encoding the measurement to generate an encoded measurement, and storing the encoded measurement. The encoding may include one or more of delta encoding, entropy encoding, or run length encoding. The method may further include modifying the measurement based on a status of the queue. The status of the queue may include an amount of entries in the queue, and the modifying the measurement may include setting the measurement to a value. The status of the queue may include an empty queue, and the modifying the measurement may include resetting the measurement. The encoding may include encoding based on one or more parameters. The method may further include determining at least one of the one or more parameters.

Abstract: A method may include receiving, at a device, a copy command, wherein the copy command comprises a first indication of a first amount of source data and a second indication of a second amount of source data, determining, based at least in part on the first indication, an amount of destination space, and blocking at least a portion of the amount of destination space. The method may further include reading the first indication, and reading the second indication, wherein the amount of destination space may include at least a first portion of the first amount and at least a second portion of the second amount. The blocking may include blocking the at least the first portion of the first amount and the at least the second portion of the second amount. The method may further include storing the first indication to generate a stored first indication.

Abstract: A method may include accessing, by a first apparatus, a queue, wherein the queue may be accessible by a second apparatus, and the first apparatus may be connected to the second apparatus by a coherent interface, and indicating, by the coherent interface, to the second apparatus, the accessing. The indicating may include indicating by a monitoring mechanism. The indicating may include generating a monitoring request. The indicating may include generating, based on the monitoring request, an alert. The queue may include a submission queue. The queue may include a completion queue. The accessing may include reading an entry from the queue. The accessing may include writing an entry to the queue. The entry may include a command. The entry may include a completion. The first apparatus may include a host, and the second apparatus may include a device. The queue may be located at the host.

Abstract: A storage unit is disclosed. The storage unit may include an interface to a host and storage for a data. A receiver may receive from a host a boot power data. The boot power data may including a first power level and a duration. A circuit may boot the storage unit based at least in part on the boot power data. The storage unit may include a second power level, with the first power level greater than the second power level.

Abstract: A method of error management includes, in response to a read request for first data from a first storage device of a plurality of storage devices under one or more common data protection schemes, receiving a read uncorrectable indication regarding the first data, obtaining uncorrected data and metadata of an LBA associated with the first data, and obtaining the same LBA from one or more other storage devices of the plurality. The method further includes comparing the uncorrected data with the data and metadata from the other storage devices, speculatively modifying the uncorrected data based, at least in part, on the other data to create a set of reconstructed first data codewords, and, in response to a determination that one of the reconstructed first data codewords has recovered the first data, issuing a write_raw command to rewrite the modified data and associated metadata to the first storage device.

Abstract: A method and a memory device are provided. A controller of the memory device retrieves a first command burst from a host memory. The first command burst includes a sequence of one or more commands from a first submission queue. The controller identifies that at least one command in the first command burst is at least one first fused command of a first set of fused commands. The first set of fused commands is to be processed atomically in the memory device, and a remainder of the first set of fused commands is on the first submission queue. The controller stores at least an identifier of the at least one first fused command in a set-aside buffer of the memory device.

Abstract: A method includes sending an enumeration of a resource unit of the computing device to a first computing system tenant and to a second computing system tenant. The enumeration is sent through a first protocol and indicating a managing protocol associated with managing the resource unit. The method further includes receiving a first request from the first computing system tenant to reserve the resource unit. The first request is received through the managing protocol. The method further includes receiving a second request from the second computing system tenant to reserve the resource unit. The second request is received through the managing protocol. The method further includes sending, to the second computing system tenant, an indication that the resource unit is reserved by the first computing system tenant. The indication is sent through the managing protocol.

Abstract: A method of error management includes, in response to a read request for first data from a first storage device of a plurality of storage devices under one or more common data protection schemes, receiving a read uncorrectable indication regarding the first data, obtaining uncorrected data and metadata of an LBA associated with the first data, and obtaining the same LBA from one or more other storage devices of the plurality. The method further includes comparing the uncorrected data with the data and metadata from the other storage devices, speculatively modifying the uncorrected data based, at least in part, on the other data to create a set of reconstructed first data codewords, and, in response to a determination that one of the reconstructed first data codewords has recovered the first data, issuing a write_raw command to rewrite the modified data and associated metadata to the first storage device.