Apple Inc.

Sandisk Il Ltd.

Pliops Ltd.

Elastifile Ltd.

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Msystems Ltd.

Avraham Poza Meir

Eyal Gurgi

Naftali Sommer

Yoav Kasorla

Menahem Lasser

Oren Golov

Eyal Bychkov

Etai Zaltsman

Barak Baum

Yael Shur

Moshe Neerman

Itzhak Pomerantz

Shai Ojalvo

Micha Anholt

Moshe Twitto

Barak Rotbard

Ori Moshe Stern

Sasha Paley

Dov Moran

Mark Murin

Shahar Frank

Julian Vlaiko

Amir Mosek

Amir Lehr

Yohan Yehouda Cohen

Eran Leibinger

Meir Dalal

Avi Klein

Yuval Rochman

Arik Rizel

Ofir Shalvi

Leonid Minz

Ariel Maislos

Boris Dolgunov

Alexander Paley

Ronen Dar

Christopher John Sarcone

Ezra N Hoch

Stas Mouler

Eyal Lotem

Michael Shachar

Evan R Boyle

Shai M Koffman

Roy Krotman

Yoram Zylberberg

Oren Segal

Alon Ziegler

Allon Cohen

Alexander (Sasha) Paley

Uzi Doron

Camuel Gilyadov

Doron Fischer

Asif Sade

There may be provided, systems, method and non-transitory computer readable media for accessing a key value pair stored in a solid state drive (SSD) memory, the method may include calculating, by a SSD memory controller and based on an input key, a first bucket identifier and a first inter-bucket value; determining a block cluster that stores the key pair value, based on the first bucket identifier, the first inter-bucket value and first metadata of a first data structure; calculating, based on the input key, a second bucket identifier and a second inter-bucket value; determining at least one of a key pair value retrieval information and a representative key pair value retrieval information, based on the second bucket identifier, the second inter-bucket value and second metadata of a second data structure; wherein the second data structure is allocated to the block cluster; wherein the second metadata comprises second logical slots, a second slot locator and second collision separation metadata; wherein at least the second slot locator comprise metadata only on representative key-pair values that are a subset of multiple key-pair values stored in the block cluster; and retrieving at least the value of the key pair value based on the at least one of the key pair value retrieval information and the representative key pair value retrieval information.

Data base and solid state disk (SSD) controller

A method for protecting objects, the method may include receiving, by a storage controller, a request to write a new object to a storage-system that may include multiple nodes, each node may include at least one storage element; the new object may include a key value pair; writing the new object to a target node and to another node of the multiple nodes; and generating a new stripe that may include multiple sets of objects, different sets of objects are stored at different nodes of the multiple nodes, a certain set of objects of the multiple sets of objects may include the new object and is stored in a first node of the target node and the other node, any set of objects of the multiple sets of objects is reconstructible using other sets of objects of the multiple set of objects.

Logical raid

There may be provided, systems, method and non-transitory computer readable media for accessing a key value pair stored in a solid state drive (SSD) memory, the method may include calculating, by a SSD memory controller and based on an input key, a first bucket identifier and a first inter-bucket value; determining a block cluster that stores the key pair value, based on the first bucket identifier, the first inter-bucket value and first metadata of a first data structure; calculating, based on the input key, a second bucket identifier and a second inter-bucket value; determining key pair value retrieval information, based on the second bucket identifier, the second inter-bucket value and second metadata of a second data structure; wherein the second data structure is allocated to the block cluster; and retrieving at least the value of the key pair value based on the key pair value retrieval information.

Solid state disk (SSD) controller and database

A computing system includes multiple compute nodes that include respective processors and respective cache memories. The processors are configured to determine a default compute node in which a given data item is to be cached, to make a decision whether to cache the given data item in the default compute node or in an alternative compute node, based on cache-quality metrics that are evaluated for respective cache memories of the compute nodes, and to cache the given data item in the default compute node or in the alternative compute node, depending on the decision.

High-performance distributed caching

A computing system includes a storage device and a host. The storage device includes a volatile memory and a non-volatile memory, and is configured to receive data for storage in the non-volatile memory, to buffer at least some of the received data temporarily in the volatile memory, and to guarantee that any data, which is not part of a predefined amount of data that was most recently received, has been committed to the non-volatile memory. The host is configured to send the data for storage in the storage device, and, in response to a need to commit given data to the non-volatile memory, to send the given data to the storage device followed by at least the predefined amount of additional data.

SSD with non-blocking flush command

A method includes storing data in a non-volatile memory that includes multiple memory blocks. At least first and second regions are defined in the non-volatile memory. A definition is made of a first over-provisioning ratio between a first logical address space and a first physical memory space of the first region, and a second over-provisioning ratio, different from the first over-provisioning ratio, between a second logical address space and a second physical memory space of the second region. Portions of the data are compacted, individually within each of the first and second regions and independently of the other region, by copying the portions from one or more source memory blocks to one or more destination memory blocks using the first and second over-provisioning ratios, respectively.

Memory management schemes for non-volatile memory devices

A method for data storage includes, for a memory including groups of memory cells, defining a normal mode and a protected mode, wherein in the protected mode a respective analog value of each memory cell remains at all times unambiguously indicative of a respective data value stored in that memory cell. Data is initially stored in the memory using the normal mode. In response to an event, the protected mode is reverted to for at least one of the groups of the memory cells.

Protection and recovery from sudden power failure in non-volatile memory devices

A method includes, in a memory device, receiving a command that specifies a peak power consumption that is not to be exceeded by the memory device. A memory of the memory device is configured in accordance with the peak power consumption specified in the command. A data storage operation in the configured memory is performed, while complying with the specified peak power consumption.

Programmable peak-current control in non-volatile memory devices

A device includes a memory and a read/write (R/W) unit. The memory includes multiple gates coupled to a common charge-trap layer. The R/W unit is configured to program and read the memory by creating and reading a set of electrically-charged regions in the common charge-trap layer, wherein at least a given region in the set is not uniquely associated with any single one of the gates.

Storage in charge-trap memory structures using additional electrically-charged regions

A method includes, in a memory including analog memory cells, storing first data in a group of the memory cells using a first type of storage command that writes respective analog values to the memory cells in the group. Second data is stored in the memory cells in the group, in addition to the first data, using a second type of storage command that modifies the respective analog values of the memory cells in the group. Upon detecting imminent interruption of electrical power to the memory during storage of the second data, a switch is made to perform an alternative storage operation that is faster than the second type of storage command and protects at least the first data from the interruption.

Techniques for reducing power-down time in non-volatile memory devices

A method includes, in a plurality of memory cells that share a common isolation layer and store in the common isolation layer quantities of electrical charge representative of data values, assigning a first group of the memory cells for data storage, and assigning a second group of the memory cells for protecting the electrical charge stored in the first group from retention drift. Data is stored in the memory cells of the first group. Protective quantities of the electrical charge that protect from the retention drift in the memory cells of the first group are stored in the memory cells of the second group.

Mitigation of data retention drift by programming neighboring memory cells

A storage device includes a non-volatile memory, a volatile memory and a controller. The volatile memory supports a normal mode and a self-refresh mode. The controller is configured to store data for a host in the non-volatile memory while using the volatile memory in the normal mode and, in response to receiving a power-down command from the host, to deactivate at least part of the storage device and to switch the volatile memory from the normal mode to the self-refresh mode.

Solid state drive with self-refresh power saving mode

A method includes, in a host that stores data in a storage device, detecting an event that is indicative, statistically and not deterministically, of an imminent power shutdown in the host. A notification is sent to the storage device responsively to the detected event, so as to cause the storage device to initiate preparatory action for the imminent power shutdown.

Power shutdown prediction for non-volatile storage devices

A method for data storage in a data storage system, which includes a main storage device and a non-volatile memory, includes assessing quality levels of respective memory blocks of the non-volatile memory. One or more of the memory blocks whose assessed quality levels are lower than a predefined quality threshold are identified. The identified memory blocks are assigned to serve as read cache memory. Data is read from the main storage device via the read cache memory, including the assigned memory blocks.

Cache memory for hybrid disk drives

An apparatus includes a non-volatile memory and a processor. The processor is configured to receive, from a host, commands for storage of data in the non-volatile memory, to further receive from the host, for storage in the non-volatile memory, File System (FS) information that specifies organization of the data in a FS of the host, to receive from the host a directive that grants the processor permission and capability to access and modify the FS information, and to access the FS information, using the directive, so as to manage the storage of the data in the non-volatile memory.

Memory system with shared file system

Growing community of inventors

Rishon Le-Zion, Israel

Avraham Poza Meir