Emc IP Holding Company LLC

Other

Gilad Braunschvig

Zvi Schneider

Kirill Shoikhet

Eldad Zinger

Kobi Luz

Anton Kucherov

Amitai Alkalay

Omer Sagi

Tal Ben-Moshe

Leron Fliess

David Krakov

Nimrod Milo

Haim Halbfinger

Ronen Halsadi

Example embodiments of the present invention relate and a method and an apparatus for double hashing. The method including receiving a hash signature, including a short hash handle, for a data block. The method then includes determining a bucket with which the hash signature should be associated and associating the hash signature with the bucket.

Using double hashing schema to reduce short hash handle collisions and improve memory allocation in content-addressable storage systems

A machine learning-based recommendation system is provided for root cause analysis of service issues. An illustrative method of a machine learning system comprises extracting features from service issue investigation log sets corresponding to previously considered service issues; generating representations for the service issue investigation log sets based on the corresponding extracted features; and storing the representations in a knowledge base. In conjunction with obtaining an additional service issue investigation log set, the illustrative method generates a representation of the additional service issue investigation log set; identifies representations previously stored in the knowledge base as candidate service issues related to the additional service issue based on pairwise probabilities indicating whether the additional service issue is related to at least a subset of the previously considered service issues; and presents information characterizing the service issue investigation log sets corresponding to respective ones of the identified representations.

Machine learning-based recommendation system for root cause analysis of service issues

A computer program product, system, and method for: registering one or more agents within a program, wherein each agent is located along an execution path of the program and is configured to change the program's internal state; and executing at least one of the agents located along a first path in response to the program executing the first path. In some embodiments, executing the at least one of the agents includes changing internal data of the program and/or causing the program to execute varying amounts of data on the first path.

Controlled testing using code error injection

A computer program product, system, and method for generating coded fragments comprises receiving, at a first node of a distributed storage system, an I/O request to write a block; splitting the block into a plurality of sub blocks; generating a sub block error detection hash for each of the sub blocks; sending the block and the sub block error detection hashes to a second node within the distributed storage system; and storing the block and the sub block error detection hashes to a storage device at the second node.

End-to-end data protection for distributed storage

Growing community of inventors

Tel Aviv, Israel

Gilad Braunschvig