Sandisk Il Ltd.

Google Inc.

IP Gem Group, LLC

Elastifile Ltd.

Microsemi Solutions (us), Inc.

Amir Mosek

Menahem Lasser

Amir Lehr

Shahar Frank

Alain Nochimowski

Elad Baram

Itzhak Pomerantz

Avraham Poza Meir

Micha Rave

Yuval Sofer

Rino Micheloni

Mark Murin

Alessia Marelli

Yacov Duzly

Ori Stern

Eran Kirzner

Ron Cohen

A data storage apparatus includes an interface and one or more processors. The interface is configured for communicating with a cloud-based object storage system 5 having a built-in versioning mechanism that assigns version numbers to objects stored therein. The one or more processors are configured to receive data for storage from one or more workloads, to store the data as objects in the cloud-based object storage system, and to 10 update and record reference counts for at least some of the objects, by forcing the built-in versioning mechanism of the cloud-based object storage system to update the version numbers so as to match the reference counts.

Object storage in cloud with reference counting using versions

A data storage apparatus includes an interface and one or more processors. The interface is configured for communicating with a cloud-based object storage system having a built-in versioning mechanism that assigns version numbers to objects stored therein. The one or more processors are configured to receive data for storage from one or more workloads, to store the data as objects in the cloud-based object storage system, and to update and record reference counts for at least some of the objects, by forcing the built-in versioning mechanism of the cloud-based object storage system to update the version numbers so as to match the reference counts.

A data storage apparatus includes an interface for communicating with a backup storage system, and one or more processors. The one or more processors are configured to store a local copy of at least part of a file system represented by hierarchical structure of directories and files, to store a backup copy of the at least part of the file system in the backup storage system, to store a dual Merkle tree that is calculated over the backup copy and includes (i) a metadata Merkle tree including Metadata Merkle-Tree Keys (MD-MTKs) and (ii) a data Merkle tree including Data Merkle-Tree Keys (D-MTKs), and to update the backup copy to match the local copy using the dual Merkle tree.

File system storage in cloud using data and metadata merkle trees

A method of handling internal operations of a storage device includes in response to information derived from one or more commands received from a host device when the storage device is coupled to the host device, determining whether a sequence of commands is in one of an active state, and a first transition state, where in the first transition state the sequence of commands is transitioning from an inactive state to the active state. The method includes, while the sequence of commands is in the active state or in the first transition state, refraining from executing any operation of a first set of internal memory management operations, each of the first set of internal memory management operations being an extra-sequence operation.

Management of internal operations by a storage device

A nonvolatile memory system, a nonvolatile memory controller and a method for reducing latency of a memory controller are disclosed. The nonvolatile memory system includes a read circuit that performs background reads of an indicator page of each block to identify outlier blocks. A background reference positioning circuit performs background reads of representative pages of the outlier block at threshold voltage offsets to identify sets of updated threshold voltage offset values. Upon endurance events, retention timer events and read disturb events at a closed block background reads are performed of representative pages of the closed block at threshold voltage offsets to identify sets of updated threshold voltage offset values. When a usage characteristic meets one or more usage characteristic threshold, the read circuit performs subsequent host-requested reads of pages of blocks meeting the usage characteristic threshold using a threshold voltage shift read instruction and using the corresponding set of updated threshold voltage offset values.

Nonvolatile memory system with background reference positioning and local reference positioning

A local proxy system includes a storage device having a local proxy and a physical port connection. The local proxy is part of a split proxy configuration having a local proxy and a remote proxy. The physical port connection is operative to receive commands from a host via an internet application protocol; and to transmit commands to the host via a modem control protocol, to thereby function as a gateway for conveying these commands to a remote proxy, via the host. Also provided is a method of optimizing communication over a network; and a local proxy system that includes a storage device having a local proxy. The storage device is in connection with a host via a physical port connection complying with a standard storage device interface.

Local proxy system and method

A data storage device includes a NAND flash memory, an executable interface and a controller for receiving, from a host, via the executable interface, an instruction to access the NAND flash memory at a virtual address and for translating the virtual address to a physical address of the volatile memory. Preferably, the controller also provides boot functionality to the host.

NAND flash memory system architecture

A method for operating a host device includes inserting a plug-in adapter, having a subscriber identity module (SIM) component disposed thereon, into a host receptacle of the host device. A memory card is inserted into a memory receptacle on the plug-in adapter. After inserting the plug-in adapter and the memory card, communications are conveyed between the host device and the SIM component via the adapter and the memory card.

Method for operating a memory interface with SIM functions

The present invention discloses systems for managing files according to an application. A method for accessing files in a digital storage device, the method including steps of: providing an application having an application identity; and adjusting a storage mode of a file according to the application identity upon the application accessing the file. Preferably, the step of providing includes providing a process identifier (PID) that is an indicator of the application identity. Preferably, the step of adjusting includes adjusting the storage mode according to a storage command associated with an application scenario of the application. Preferably, the step of adjusting is performed using a storage attributes table (SAT). Preferably the step of adjusting is performed using an application scenario table (AST).

Methods for managing files according to application

A number of applications can be run by the computing system. Such applications can execute independently from each other and can also each independently manage a corresponding set of content stored on a local storage device (LSD). One of the advantages presented by the invention is the ability of the LSD to inform one application of the content made available on the LSD by another one of the applications even though the applications have no relationship to each other. In this way, a synergy between the independent applications can be achieved providing a co-operative environment that can result in, for example, improved operation of the computing system, improved resource (i.e., memory, bandwidth, processing) allocation and use, and other factors.

Cache management

The present invention discloses a computer-readable storage medium having computer-readable code embodied on the computer-readable storage medium, the computer-readable code including: program code for delivering, in response to a CPU request, from a host-system processor of a host system, for a command code, an SWI that is different than the command code. Preferably, the computer-readable code further includes: program code for selecting between providing the command code and providing the SWI based on an availability of the command code. Preferably, the computer-readable code further includes: program code for distinguishing between a command-code read-request and a data read-request according to a built-in command-codes table, wherein the command-code read-request and the data read-request are different. Preferably, the computer-readable code further includes: program code that uses SWI machine code to respond to the host-system processor, when the command code is a part of a missing-code segment, without causing latency.

System for synchronous code retrieval from an asynchronous source

A method of managing a plurality of files according to their respective instances of a property of the files, a data processing device that uses the method, and a computer readable storage medium bearing code for implementing the method. The files of at least one of the instances are managed according to a management protocol respective to that/those instance(s). Preferably, all the other files are managed according to a common default management protocol. Different protocols trade off performance vs. ruggedness, trade off average performance vs. latency, or include different defragmentation policies.

Growing community of inventors

Tel Aviv, Israel

Amir Mosek