The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2026
Filed:
Mar. 07, 2024
Commvault Systems, Inc., Tinton Falls, NJ (US);
Anand Vishwanath Vastrad, San Jose, CA (US);
Suhani Gupta, San Jose, CA (US);
Commvault Systems, Inc., Tinton Falls, NJ (US);
Abstract
A distributed data storage system that employs erasure coding grows from fewer than data-plus-parity (D+P) storage service nodes to at least D+P nodes. The system detects an increase in the number of available storage service nodes, i.e., at least D+P; analyzes how storage for each virtual disk is distributed among storage containers in the existing (pre-growth) nodes; identifies containers that are co-hosted on the same node; and, on a node-by-node basis, migrates data fragments from a co-hosted storage container to a corresponding new container that is configured on another node. For each virtual disk in the illustrative system, the migration causes containers, including the erasure-coded data fragments they host, to be re-distributed so that the containers for a virtual disk are NOT doubled up or co-hosted on the same node. The disclosed computer-implemented process for re-distributing erasure-coded data fragments operates organically, without requiring the system to restart or reboot.