Devices and techniques for a dynamically adjusting a garbage collection workload are described herein. For example, memory device idle times can be recorded. From these recorded idle times, a metric can be derived. A current garbage collection workload can be divided into portions based on the metric. Then, a first portion of the divided garbage collection workload can be performed at a next idle time.

The present disclosure relates to a method, device and computer program product for executing a job in an application system. Here, the application system comprises a first processing device and a second processing device, and a first response speed of the first processing device being lower than a second response speed of the second processing device. In a method, a job request is received from a user of the application system, the job request specifying that the job is to be executed in the application system; a job type of the job is determined, the job type describing a requirement of the user on a response speed for executing the job; a target processing device is selected from the first processing device and the second processing device in accordance with determining that the job type relates to a high response speed; and the job is assigned to the selected target processing device, so that the job is executed by the target processing device. By means of the above method, a processing device for processing a job is selected based on the type of the job, and further processing devices in the application system may be dispatched more effectively. Furthermore, there is provided a corresponding device and computer program product.

Disclosed is a system including a memory device having a plurality of physical memory blocks and associated with a logical address space that comprises a plurality of zones, wherein each zone comprises a plurality of logical block addresses (LBAs), and a processing device, operatively coupled with the memory device, to perform operations of receiving a request to store data referenced by an LBA associated with a first zone of the plurality of zones, obtaining a version identifier of the first zone, obtaining erase values for a plurality of available physical memory blocks of the memory device, selecting, in view of the version identifier of the first zone and the erase values, a first physical memory block of the plurality of available physical memory blocks, mapping a next available LBA within the first zone to the first physical memory block, and storing the data in the first physical memory block.

The invention describes a method for determining a storage location of a database object of a specific version, wherein indexes for each version of the database object are stored in a trie having a root node corresponding to the specific version, the method comprising: determining a trie corresponding to the specific version by accessing the root node of the trie corresponding to the specific version; determining an object identifier of the database object by traversing the trie corresponding to the specific version using a secondary key related to the database object as search key; determining the storage location of the database object by traversing the trie corresponding to the specific version using the determined object identifier as search key.

Systems and methods for adapting garbage collection (GC) operations in a memory device to an estimated device age are discussed. An exemplary memory device includes a memory controller to track an actual device age, determine a device wear metric using a physical write count and total writes over an expected lifetime of the memory device, estimate a wear-indicated device age, and adjust an amount of memory space to be freed by a GC operation according to the wear-indicated device age relative to the actual device age. The memory controller can also dynamically reallocate a portion of the memory cells between a single level cell (SLC) cache and a multi-level cell (MLC) storage according to the wear-indicated device age relative to the actual device age.

A method includes receiving, by a processing device, an indication that a media management operation performed with respect to a block of a memory sub-system satisfies a performance condition, wherein the block maintains first data stored using a first write mode, in response to receiving the indication, determining, by the processing device, that a cache block of a cache area of the memory sub-system satisfies an endurance condition, wherein the cache block maintains second data stored using a second write mode, and changing, by the processing device, a write mode for the cache block from the second write mode to the first write mode responsive to determining that the cache block satisfies the endurance condition.

A data processing system in which, in a case where it is difficult for a host to perform garbage collection by itself due to a load induced in the host in a system configured by Zoned Namespaces, the host requests garbage collection to a memory system and thus the memory system performs the garbage collection, and an operating method thereof.

Systems and methods for of determining a replication time in a deduplicated file system are disclosed. Maximum streams are determined based on a number of allocated streams on a source node and a number of allocated streams on a target node. An available network bandwidth between the source node and the target node is determined. A delta time is estimated based at least on one or more duplicate fingerprints between a logical space unit of the source node and the target node by using at least one source smart filter and at least one target smart filter. The replication time is determined based on the maximum streams, the available network bandwidth between the source and target nodes, the estimated delta time, and a number of unique fingerprints that exist between the logical space unit of the source node and the target node.

A managing method for a flash storage includes: sorting a plurality of blocks within the flash storage into precise blocks and imprecise blocks; and managing the sorted blocks as a plurality of free block pools. The management includes performing garbage collection and wear leveling, and the wear leveling is performed based on CEW (Cumulative Effective Wearing), the CEW indicating cumulative cell damage induced by performing a plurality of operations on a specific block. A storage system includes a memory array; and a memory controller sorting a plurality of blocks of the memory array based on error rates, applying erase voltages corresponding to the error rates, respectively, when data stored in the blocks are erased, controlling each of the erase voltages to have a value scaled down from a standard voltage, and performing incremental step pulse programming on one or more of the blocks.

Embodiments of the present disclosure relate to a memory system and an operating method of the memory system. According to embodiments of the present disclosure, a memory system writes, when performing the sudden power-off recovery operation, a plurality of target segments which are segments most recently written to each of the plurality of open memory blocks among the plurality of memory blocks to a target memory block among the plurality of memory blocks.