Apple Inc.

Anobit Technologies Ltd.

Oren Golov

Uri Perlmutter

Ofir Shalvi

Naftali Sommer

Eyal Gurgi

Dotan Sokolov

Micha Anholt

Avraham Poza Meir

Shai Winter

Barak Rotbard

Etai Zaltsman

Ori Moshe Stern

Michael Shachar

Julian Vlaiko

Shai Ojalvo

Moshe Neerman

Tavi Salomon

Yair Schwartz

Sasha Paley

Yoav Kasorla

Gil Semo

Eran Sandel

Shachar Katz

Oren Segal

Yoav Kasoria

Uzi Doron

A method for data storage includes receiving a plurality of data items for storage in a memory, including at least first data items that are associated with a first data source and second data items that are associated with a second data source, such that the first and second data items are interleaved with one another over time. The first data items are de-interleaved from the second data items, by identifying a respective data source with which each received data item is associated. The de-interleaved first data items and the de-interleaved second data items are stored in the memory.

Optimized execution of interleaved write operations in solid state drives

A method for data storage includes storing data in a group of analog memory cells by writing respective input storage values to the memory cells in the group. After storing the data, respective output storage values are read from the analog memory cells in the group. Respective confidence levels of the output storage values are estimated, and the confidence levels are compressed. The output storage values and the compressed confidence levels are transferred from the memory cells over an interface to a memory controller.

Efficient readout from memory cells using data compression

A method in a storage device includes receiving from a host storage commands for execution in a non-volatile memory of the storage device. At least a subset of the storage commands are to be executed in accordance with an order-of-arrival in which the storage commands in the subset are received. The received storage commands are executed in the non-volatile memory in accordance with internal scheduling criteria of the storage device, which permit deviations from the order-of-arrival, but such that execution of the storage commands in the subset reflects the order-of-arrival to the host.

Efficient enforcement of command execution order in solid state drives

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 includes, in a memory controller that controls a memory, evaluating an available memory space remaining in the memory to write data. A redundant storage configuration is selected in the memory controller depending on the available memory space. Redundancy information is calculated over the data using the selected redundant storage configuration. The data and the redundancy information are written to the available memory space in the memory.

Selection of redundant storage configuration based on available memory space

A method for data storage includes receiving data items associated with respective logical addresses for storage in a memory that includes multiple memory units. Respective estimates of a performance characteristic are obtained for the multiple memory units. A mapping, which maps the logical addresses to respective physical storage locations in the multiple memory units, is adapted based on the estimates so as to balance the performance characteristic across the memory units. The data items are stored in the physical storage locations in accordance with the adapted mapping.

Adaptive mapping of logical addresses to memory devices in solid state drives

A data storage system includes a plurality of non-volatile memory devices arranged in one or more sets, a main controller and one or more processors. The main controller is configured to accept commands from a host and to convert the commands into recipes. Each recipe includes a list of multiple memory operations to be performed sequentially in the non-volatile memory devices belonging to one of the sets. Each of the processors is associated with a respective set of the non-volatile memory devices, and is configured to receive one or more of the recipes from the main controller and to execute the memory operations specified in the received recipes in the non-volatile memory devices belonging to the respective set.

Hierarchical data storage system

Efficient readout from analog memory cells using data compression

A method for data storage includes, in a host system that operates alternately in a normal state and a hibernation state, reserving a hibernation storage space in a non-volatile storage device for storage of hibernation-related information in preparation for entering the hibernation state. While the host system is operating in the normal state, a storage task other than storage of the hibernation-related information is performed using at least a portion of the reserved hibernation storage space.

Reuse of host hibernation storage space by memory controller

A data storage method includes identifying, in a set of data items associated with respective logical addresses for storage in a memory, a first subset of the logical addresses associated with the data items containing application data, and a second subset of the logical addresses associated with the data items containing parity information that has been calculated over the application data. The data items associated with the first identified subset are stored in one or more first physical memory areas of the memory, and the data items associated with the second identified subset are stored in one or more second physical memory areas of the memory, different from the first physical memory areas. A memory management task is performed independently in the first physical memory areas and in the second physical memory areas.

Independent management of data and parity logical block addresses

A method for data storage includes storing two or more data items in a non-volatile memory. Redundancy information is calculated over the data items, and the redundancy information is stored in a volatile memory. Upon a failure to retrieve a data item from the non-volatile memory, the data item is reconstructed from remaining data items stored in the non-volatile memory and from the redundancy information stored in the volatile memory.

Growing community of inventors

Hod-Hasharon, Israel

Oren Golov