EMC IP Holding/Dell Technologies Assigned Twenty Patents

Managing storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513681) developed by Wu, Zhilong, Tang, Haiying, Xu, Xinlei, Shang, Rongrong, and Zhang, Xiaobo, Beijing, China, for “method, device, and computer program product for managing storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A storage system comprises stripes, extents comprised in one stripe among the stripes residing on storage devices in the storage system, respectively. A failed stripe is determined among the stripes, the failed stripe comprising a group of failed extents residing on a group of failed storage devices, respectively, a number of failed storage devices in the group being less than or equal to parity width of the storage system. Distribution of the group of failed extents in the failed stripe is obtained. A rebuild parameter for rebuilding data in the failed stripe is generated based on the obtained distribution. The generated rebuild parameter is stored for rebuilding the storage system. Accordingly, a rebuild parameter generated for one failed stripe is reused for other failed stripe with the same distribution. The performance of rebuild operations may be improved, and time of rebuild operations may be reduced.”

The patent application was filed on 2020-06-02 (16/890402).

Generating synthetic backups using block based backups
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513715) developed by Rangapuram, Ravi Kishore Yadav, Jagannatha, Manjunath, and Madiraju Varadaraju, Kiran Kumar, Bangalore, India, for “method and system for generating synthetic backups using block based backups.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method that is performed for backing up data. The method includes obtaining, by a backup storage, an incremental backup request, and in response to the incremental backup request, identifying backup extents of a full backup associated with the incremental backup request using backup metadata, generating an intermediate backup file comprising the backup extents, wherein each of the backup extents is a reference to a correspond data block, obtaining modified data blocks from a production host, and updating the intermediate backup file using on the modified data blocks to generate a virtual synthetic backup file.”

The patent application was filed on 2020-08-07 (16/988524).

Continuously offloading I/O traces from storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513688) developed by Wang, Wei, Westborough, MA, and Beauregard, Benjamin James, Merrimack, NH, for “system and method for continuously offloading input-output (IO) traces from a storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method, computer program product, and computing system for allocating a portion of a storage system for storing input/output (IO) traces, thus defining an IO trace storage tier. The plurality of IO traces may be stored within the IO trace storage tier. It may be determined whether at least a threshold number of IO traces are stored within the IO trace storage tier. In response to determining that at least the threshold number of IO traces are stored within the IO trace storage tier, at least a portion of the plurality of IO traces may be offloaded to a client computing device.”

The patent application was filed on 2021-04-01 (17/220310).

Creating stripe based on dynamic window
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513711) developed by Fan, Huijuan, and Chen, Chi, Chengdu, China, for “method, device, and program product for creating stripe based on dynamic window.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Techniques involve creating a stripe based on a dynamic window. In particular, in response to a request to create a stripe in the storage system, a first storage device for creating the stripe is selected from multiple storage devices. A first extent in the first storage device is added to the stripe. A first storage device sequence associated with the first storage device is determined based on a size of a predetermined window, and the first storage device sequence includes the first storage device and a set of continuous storage devices adjacent to the first storage device in the multiple storage devices. At least one other storage device for creating the stripe is determined based on storage devices other than the first storage device in the first storage device sequence. The storage devices in the storage system can be used in a balanced manner as much as possible.”

The patent application was filed on 2021-09-15 (17/475951).

Multi-core I/O trace analysis
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513939) developed by Hershkovitz, Gabriel, Newton, MA, Cartmell, Jerome J., Natick, MA, and Don, Arieh, Newton, MA, for a “multi-core I/O trace analysis.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Improved mechanisms and techniques for recording and aggregating trace information from multiple computing modules of a storage system may be provided. On a storage system having multiple computing modules, where each computing module has multiple processing cores, processing cores may record trace information for I/O operations in dedicated local memory—i.e., memory in the same computing module as the processing core that is dedicated to the computing module. One of the processing cores may be configured to aggregate trace information from across multiple computing modules into its dedicated local memory by accessing trace information from the dedicated local memories of the other computing modules in addition to its own. The aggregated information in one dedicated local memory then may be analyzed for functionality and/or performance and additional action taken based on the analysis.”

The patent application was filed on 2019-08-02 (16/530134).

Determining capacity in storage systems using ML techniques
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513938) developed by Gowda, Deepak, North Carolina, NC, and Thakkar, Bina K., Cary, NC, for “determining capacity in storage systems using machine learning techniques.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Methods, apparatus, and processor-readable storage media for determining capa in storage systems using machine learning techniques are provided herein. An example computer-implemented method includes obtaining capa-related data from a storage system, forecasting, for a given temporal period, capa of one or more storage objects of the storage system by applying machine learning techniques to at least a portion of the capa-related data, aggregating the forecasted capa for at least portions of the one or more storage objects, determining, based on the aggregated forecasted capa of the storage objects, whether at least a portion of the storage system will run out of capa in connection with the given temporal period, and performing one or more automated actions based at least in part on the determination as to whether the at least a portion of the at least one storage system will run out of capacity.”

The patent application was filed on 2019-12-30 (16/729841).

Tiering with pluggable storage system for parallel query engines
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11514046) developed by Tiwari, Sameer, Fremont, CA, Bhandarkar, Milind Arun, San Jose, CA, and Mogal, Bhooshan Deepak, Mountain View, CA, for a “tiering with pluggable storage system for parallel query engines.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method, article of manufacture, and apparatus for managing data. In some embodiments, this includes determining a usage level of a file, wherein the file is stored in a first storage system, moving the file to a second storage system based on the determined usage level of the file updating location information in a catalog based on the movement of the file, and performing at least a portion of a query on the file after updating location information in the catalog.”

The patent application was filed on 2020-05-01 (16/865164).

Volume polarization across multiple storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513705) developed by Meiri, David, Somerville, MA, and Chen, Xiangping, Sherborn, MA, for “system and method for volume polarization across multiple storage systems.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method, computer program product, and computing system for dividing a plurality of volumes replicated across a pair of storage systems into one or more consistency groups. A polarization may be defined for each consistency group. An input-output (IO) failure associated with at least one consistency group may be detected. At least a portion of the at least one consistency group may be polarized based upon, at least in part, the polarization defined for the at least one consistency group.”

The patent application was filed on 2021-04-19 (17/234054).

ML based resource availability prediction
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11514317) developed by Lakshmikantha, Shashikanth, San Jose, CA, Taralekar, Sankalp Suhas, Santa Clara, CA, Nguyen, Tuan, Kuchi, Venkata Narasa Kumar, San Jose, CA, and Godbole, Koushik Nagaraj, Santa Clara, CA, for a “machine learning based resource availability prediction.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Requests from file system services of a storage system are registered. Each file system service, when executed, utilizes one or more resources of the storage system. Each request includes information describing resource requirements required by a respective file system service. Resource utilization data of the resources are collected over a period of time. The resource utilization data includes an identification of a resource, a timestamp, and a measurement indicating a utilization level of the resource corresponding to the timestamp. A machine learning model is trained to predict utilization patterns of the resources. Execution of the file system services are scheduled based on the predicted utilization patterns. Monitoring is conducted during the execution of the file system services. Based on the monitoring a determination is made as to whether the machine learning model should be retrained.”

The patent application was filed on 2020-03-25 (16/830058).

Data rebalancing after scale-out event in storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513709) developed by Danilov, Mikhail, Saint Petersburg, Russia, and Altaye, Johannes, Dumfries, VA, for a “data rebalancing after a scale-out event in a data storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The described technology is generally directed towards rebalancing fragments (components) of a protection group among storage entities (e.g., nodes or disks) based on affinity levels in response to a scale out event that expands the storage entities e.g., nodes or disks) of a system. Affinity levels (e.g., maintained in an affinity matrix) represent dependency relationships between the storage entities with respect to storing distributed protection group fragments. A protection group’s components are rebalanced based on the new storage entities such that the affinity level between any pair of storage entities is approximately the same as any other pair. In the event of a storage entity failure, as a result of the affinity-based distribution of the protection group components needed for data recovery, a larger number of the other storage entities can be involved in the data recovery. The technology facilitates improved capa load balancing and faster data recovery.”

The patent application was filed on 2021-01-08 (17/144314).

Anomaly aware log retrieval from disk array enclosures ((DAEs)
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513931) developed by Liu, Bing, Tianjin, China, and Vishwakarma, Rahul, Bangalore, India, for an “anomaly aware log retrieval from disk array enclosures ((DAEs).”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “An anomaly with a disk array enclosure (DAE) of a set of DAEs connected to a host server is detected. Each DAE is chained to another DAE by first and second chains and includes a serial attached SCSI (SAS) expander and a peer SAS expander. The SAS expander in a DAE forms part of the first chain. The peer SAS expander in the DAE forms part of the second chain. Upon detection, DAE log collection is triggered to obtain logs for storage in a repository, separate from the DAEs. The logs are tagged with an anomaly class of a set of anomaly classes. For each anomaly class, a number of logs stored in the repository is limited to a threshold number.”

The patent application was filed on 2021-09-24 (17/485128).

Dynamic modification of I/O shaping mechanisms of multiple storage nodes in distributed storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11513882) developed by Soukhman, Alex, Raanana, Israel, and Kamran, Lior, Rishon LeZion, Israel, for a “dynamic modification of io shaping mechanisms of multiple storage nodes in a distributed storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “At least one processing device is configured to detect a failure event impacting at least a first storage node of a plurality of storage nodes of a distributed storage system, and responsive to the detected failure event, to modify an input-output (IO) shaping mechanism in each of the storage nodes in order to at least temporarily reduce a total number of IO operations that are concurrently processed in the distributed storage system. For example, modifying an IO shaping mechanism in each of the storage nodes illustratively comprises transitioning the IO shaping mechanism in each of the storage nodes from a first operating mode to a second operating mode that is different than the first operating mode. The second operating mode of the IO shaping mechanism illustratively has a relatively faster responsiveness to changes in IO operation latency as compared to the first operating mode of the IO shaping mechanism.”

The patent application was filed on 2020-06-08 (16/894973).

Agent-less replication management
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507595) developed by Kumar, Sunil, Rao, Vinay, Bangalore, India, Michaely, Boaz, Newton Center, MA, and Don, Arieh, Newton, MA, for an “agent-less replication management.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Systems and methods for performing data protection operations including replication management or data copy operations. Agent-less data protections are performed. A management server is configured to perform data operations on a production host without installing an agent on the production host. A driver is adapted to aid in performing the data protection operations and communications between the management server and the driver such as commands are achieved via a storage array.”

The patent application was filed on 2017-07-17 (15/651803).

Adding single disks to array by relocating RAID members
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507287) developed by Hua, Kuolin, Natick, MA, and Gao, Kunxiu, Boxborough, MA, for “adding single disks to an array by relocating RAID members.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Protection group members from a cluster of W baseline size disks with RAID (D+P) protection groups associated with W partition indices, where W=D+P, are selected and relocated to a new baseline size disk using a W-by-W relocation sequence matrix. The same relocation sequence matrix is used to select and relocate protection group members from M clusters of baseline size disks to a new disk that has M times the storage capa of each baseline size disk. A new cluster of multiple size disks is formed when W multiple size disks have been added, after which the W-by-W relocation sequence matrix is used to select and relocate protection group members from the new cluster to additional multiple size disks.”

The patent application was filed on 2021-05-26 (17/330974).

Estimating performance headroom in storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507327) developed by Shveidel, Vladimir, Pardes-Hana, Israel, Alkalay, Amitain, Kadima, Israel, and Dar, Shaul, Petach Tikva, Israel, for “system and method of estimating performance headroom in a storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Techniques for estimating performance metrics of standalone or clustered storage systems. The techniques include receiving a request from a storage client for an estimated capa or capability of a storage system to handle a specified workload pattern within a specified periodi interval, in which the estimated capa or capability of the storage system is represented by a headroom metric. The techniques further include, in response to the request from the storage client, obtaining a value of the headroom metric for the specified periodi interval using a performance model characterized by at least a peak load reserve (PLR) metric and a long-term load reserve (LLR) metric, in which the obtained value of the headroom metric corresponds to the minimum of respective values of at least the PLR metric and the LLR metric. The techniques further include upgrading, scaling-up, and/or scaling-out the storage system based on the value of the headroom metric.”

The patent application was filed on 2021-09-24 (17/484576).

Backup and recovery of application using containerized backups comprising application data and application dependency information
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507474) developed by Sharma, Manish, Bansal, Aaditya, Chopra, Shelesh, and Yadav, Sunil, Bangalore, India, for “system and method for a backup and recovery of application using containerized backups comprising application data and application dependency information.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method for performing a backup operation includes obtaining, by a backup agent, a backup request for a file system, and in response to the backup request: generating a first application partition for an application associated with the file system, performing a dependency analysis on the application to identify application dependency information, populating a first application partition with a copy of the application dependency information and a copy of application data associated with the application, and initiating a storage of a backup to a backup storage system, wherein the backup comprises the first application partition.”

The patent application was filed on 2020-05-28 (16/886549).

Securely replicating encrypted deduplicated storages
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11509458) developed by Shemer, Jehuda, Kfar Saba, Israel, and Natanzon, Assaf, Tel Aviv, Israel, for “method and system for securely replicating encrypted deduplicated storages.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method and system for securely replicating encrypted deduplicated storages. Specifically, the method and system disclosed herein entail the replication and migration of encrypted data between storage systems that support deduplication. More specifically, a first encrypted data, which may have been encrypted using a first public cryptographic key and consolidated on a source storage system, may be translated into an interim (yet still encrypted) using a first split private cryptographic key. Thereafter, using a compound conversion key, the interim data may be further translated into a second encrypted data, which may be characterized as being encrypted by a second public cryptographic key. Therefore, substantively, the method and system disclosed herein may be directed to the translation of encrypted data from one encryption scheme to another while in-flight from a source storage system to a target storage system.”

The patent application was filed on 2020-07-17 (16/931582).

Method, device and computer program for storage management
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507457) developed by Liu, Yousheng, Xu, Xinlei, Dong, Jibing, and Li, Xiongcheng, Beijing, China, for “method, electronic device and computer program product for storage management.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Techniques involve: writing, when a first disk for dirty page storage has a failure, a first target page description generated by a first node and associated with a first set of target dirty pages of the first node and a second set of target dirty pages of a second node to a first page description storage layer for the first node in a second disk, writing a second target page description generated by the second node and associated with the first set of target dirty pages and the second set of target dirty pages to a second page description storage layer for the second node in the second disk, and restoring, when the failure has been eliminated, the first set of target dirty pages and the second set of target dirty pages in the first disk based on at least one of the descriptions.”

The patent application was filed on 2021-11-19 (17/531038).

Method, apparatus and computer storage medium for file storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507537) developed by Wang, Donglei, Li, Zhiqiang, Gao, Lei, and Zhang, Weibing, Beijing, China, for “method, apparatus and computer storage medium for file storage.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Techniques perform file storage. Such techniques involve determining a candidate allocation unit (AU) size for storing data based on a statistic of an AU size matching with a write request during a statistic period, and storing a new file using the determined candidate AU size to store the new file. Accordingly, storage space is saved and reading and writing performance are improved.”

The patent application was filed on 2018-12-18 (16/223727).

Intelligently provisioning resources in storage
EMC IP Holding Company LLC, Hopkinton, MA, a Dell Technologies, Inc. company, has been assigned a patent (11507422) developed by Vishwakarma, Rahul Deo, and Kannery, Supriya, Bangalore, India, for “method and system for intelligently provisioning resources in storage systems.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method and system for intelligently provisioning resources in storage systems. Specifically, the method and system disclosed herein entail throttling the allocation of resources aiding in the performance of background service tasks on a backup storage system. That is, throughout a predicted span of a background service task, resources may be dynamically allocated towards the performance of the background service task at discrete time intervals within the predicted span, thereby improving overall system utilization.”

The patent application was filed on 2019-08-01 (16/529753).