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Infinidat Assigned Four Patents

Cache eviction according to data hit ratio and service level agreement, decompression of compressed data unit, writing pages to storage system, flow control in remote replication
By Francis Pelletier on 2017.11.10

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Cache eviction according to data hit ratio and service level agreement
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,798,665) developed by Yochai, Yechiel, Moshav Aviel, Israel, for a "
cache eviction according to data hit ratio and service level agreement."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method that may include determining, for each user of a group of users, a time difference between an event of a first type that is related to a storage of a user data unit of the user within a cache of a storage system and to an eviction of the user data unit from the cache, in response to, (a) a service-level agreement, (SLA) associated with the user and to, (b) multiple data hit ratios associated with multiple different values of a time difference between events of the first type and evictions, from the cache, of multiple user data units of the user, and evicting from the cache, based upon the determination, one or more user data units associated with one or more users of the group.

The patent application was filed on December 20, 2015 (14/975,794).

Decompression of compressed data unit
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,729,168) developed by Medan, Yoav, Haifa, Israel, for a "
decompression of a compressed data unit."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method that may include retrieving, by a decompression processor, a compressed data unit, wherein the compressed data unit comprises a control section and a data section, wherein the control section comprises multiple decompression instructions for a retrieval of data portions from one or more sources, wherein the one or more source comprise the data section, wherein the control section does not include any data portion, and executing, by a decompression processor, the multiple decompression instructions to provide a decompressed data unit.

The patent application was filed on July 17, 2016 (15/212,241).

Writing pages to storage system
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,727,486) developed by Yochai, Yechiel, Moshav Aviel, Israel, for a "
writing pages to a storage system."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method for writing data objects, the method may include accumulating, in a first memory module, multiple new data entities in one or more dirty pages of a data layer, wherein each new data entity and a corresponding older data entity are associated with a same application object, wherein the accumulating comprises storing each new data entity in a page that differs from a page that stores the corresponding older data entity, calculating multiple new sets of descriptors by generating to each new data entity, a new set of descriptors, wherein each set of descriptors comprises descriptors that belong to multiple descriptors layers, wherein the multiple descriptors layers and the data layer belong to an hierarchical data structure, accumulating the multiple new sets of descriptors in one or more dirty pages of one or more descriptors layers, wherein each corresponding older data entity is associated with a corresponding set of descriptors, wherein the accumulating comprises storing each new set of descriptor in a page that differs from a page that stores a corresponding set of descriptors, and writing the multiple new data entities and the multiple new sets of descriptors to a second memory module.

The patent application was filed on September 10, 2015 (14/849,763).

Flow control in remote replication
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,712,617) developed by Shani, Ayelet, Moshav herev le'et, Israel, for a "
flow control in remote replication."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method for controlling multiple replication processes that includes allocating, by a local storage system and for each replication process, local resources for performing local operations that comprise transmitting remote replication content to a remote storage system, the allocating is responsive to a state of transmission of the replication content and a maximal local storage system allocation threshold, allocating, by the remote storage system and for each replication process, remote resources for performing remote operations that comprise handling the replication content transmitted from the local storage system, the allocating is responsive to a load associated with the handling of the replication content, and a maximal remote storage system allocation threshold, and executing each replication process by the replication process local and remote storage systems resources.

The patent application was filed on July 6, 2015 (14/791,535).

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