公开(公告)号：US12001338B2

公开(公告)日：2024-06-04

申请号：US17452834

申请日：2021-10-29

Applicant: Nutanix, Inc.

Inventor： Gaurav Jain ,  Rohit Ghivdonde ,  Srihita Goli ,  Shyam Sankaran ,  Anoop Jawahar

IPC: G06F12/0868 ,  G06F9/455 ,  G06F9/50

CPC classification number: G06F12/0868 ,  G06F9/45558 ,  G06F9/5038 ,  G06F2009/45579 ,  G06F2009/45583 ,  G06F2212/1021 ,  G06F2212/7207

Abstract: Disclosed is an approach for implementing a metadata cache in a virtualization system. A self-adaptive approach is provided to keep compressed and uncompressed entries together in cache. Along with adaptive nature, disclosed is an approach to prioritize critical workloads for the cache.

公开(公告)号：US20190236016A1

公开(公告)日：2019-08-01

申请号：US15886044

申请日：2018-02-01

Applicant: Nutanix, Inc.

Inventor： Anoop Jawahar ,  Gaurav Jain

IPC: G06F12/0888

CPC classification number: G06F12/0888 ,  G06F12/0802 ,  G06F2212/1021 ,  G06F2212/1041

Abstract: An exemplary embodiment herein is a method including comparing a cache hit rate ratio of a unified cache to a first pre-determined threshold, incrementing an alert counter in response to the cache hit rate ratio being lower than the first pre-determined threshold, comparing the alert counter to a pre-determined limit, preventing a first receipt of a type of data by the unified cache in response to the alert counter being equal to the pre-determined limit, causing a second receipt of metadata by the unified cache, comparing the cache hit rate ratio to a second pre-determined threshold, and allowing the first receipt of the type of data by the unified cache in response to the cache hit rate ratio being greater than the second pre-determined threshold.

公开(公告)号：US11853569B2

公开(公告)日：2023-12-26

申请号：US17237289

申请日：2021-04-22

Applicant: NUTANIX, INC.

Inventor： Mohammad Mahmood ,  Aman Gupta ,  Gaurav Jain ,  Anoop Jawahar ,  Prateek Kajaria

IPC: G06F3/06

CPC classification number: G06F3/064 ,  G06F3/0619 ,  G06F3/0653 ,  G06F3/0664 ,  G06F3/0679

Abstract: Various embodiments set forth techniques for cache warmup. The techniques determining, by a node, identities of one or more target storage blocks of a plurality of storage blocks managed by a storage system, where the node previously cached metadata corresponding to the one or more target storage blocks; receiving the metadata corresponding to the one or more target storage blocks; and storing the metadata corresponding to the one or more target storage blocks in a cache memory of the node.

公开(公告)号：US10558579B1

公开(公告)日：2020-02-11

申请号：US16107267

申请日：2018-08-21

Applicant: Nutanix, Inc.

Inventor： Srihita Goli ,  Lakshit Bhutani ,  Anoop Jawahar ,  Gaurav Jain

IPC: H04L29/06 ,  G06F12/0871 ,  G06F9/455 ,  G06F12/0893

Abstract: The system can include a cache and cluster manager. The cache can store a plurality clusters, each of a plurality of clusters including a plurality of cache entries, each of the plurality of cache entries including a plurality of first metadata feature values. The cluster manager can assign a first cache entry corresponding to a data record located in memory to a first cluster based on determining a lowest distance. The lowest distance is determined by operations. The operations can include calculating a plurality of intra cluster feature means. The operations can include receiving a plurality of second metadata feature values of the first cache entry. The operations can include calculating a plurality of distances based on the plurality of intra cluster feature means and the plurality of second metadata feature values. The operations can include determining the first entry having a lowest distance of the plurality of distances.

公开(公告)号：US10467145B2

公开(公告)日：2019-11-05

申请号：US15886044

申请日：2018-02-01

Applicant: Nutanix, Inc.

Inventor： Anoop Jawahar ,  Gaurav Jain

IPC: G06F12/00 ,  G06F12/0888 ,  G06F12/0802

Abstract: An exemplary embodiment herein is a method including comparing a cache hit rate ratio of a unified cache to a first pre-determined threshold, incrementing an alert counter in response to the cache hit rate ratio being lower than the first pre-determined threshold, comparing the alert counter to a pre-determined limit, preventing a first receipt of a type of data by the unified cache in response to the alert counter being equal to the pre-determined limit, causing a second receipt of metadata by the unified cache, comparing the cache hit rate ratio to a second pre-determined threshold, and allowing the first receipt of the type of data by the unified cache in response to the cache hit rate ratio being greater than the second pre-determined threshold.

公开(公告)号：US20200065249A1

公开(公告)日：2020-02-27

申请号：US16107267

申请日：2018-08-21

Applicant: Nutanix, Inc.

Inventor： Srihita Goli ,  Lakshit Bhutani ,  Anoop Jawahar ,  Gaurav Jain

IPC: G06F12/0871 ,  G06F12/0893 ,  G06F9/455

Abstract: The system can include a cache and cluster manager. The cache can store a plurality clusters, each of a plurality of clusters including a plurality of cache entries, each of the plurality of cache entries including a plurality of first metadata feature values. The cluster manager can assign a first cache entry corresponding to a data record located in memory to a first cluster based on determining a lowest distance. The lowest distance is determined by operations. The operations can include calculating a plurality of intra cluster feature means. The operations can include receiving a plurality of second metadata feature values of the first cache entry. The operations can include calculating a plurality of distances based on the plurality of intra cluster feature means and the plurality of second metadata feature values. The operations can include determining the first entry having a lowest distance of the plurality of distances.