VMware Assigned Three Patents

Optimizing live migration of persistent data of VM using disk I/O heuristics
VMware, Inc., Palo Alto, CA, has been assigned a patent (8,560,791) for a “method and system for optimizing live migration of persistent data of VM using disk I/O heuristics“, developed by three inventors Mashitizadeh Ali, El Cerrito, CA, Cai Min, Sunnyvale, CA, and Celebi Emre, Mountain View, CA.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Techniques for migrating persistent data between and across data stores are implemented using monitoring methods. The method includes classifying frequently updated blocks of persistent data to distinguish those blocks from less frequently updated blocks of persistent data. The less frequently updated blocks are copied from the source data store to the destination data store, such that persistent data is copied to the destination data store in the absence of the persistent data of the frequently updated blocks. The method further includes identifying a modified set of the less frequently updated blocks that are modified during the copying. The modified set of less frequently updated blocks is copied from the source data store to the destination data store, without copying the frequently updated blocks. It is then determined whether to copy the frequently updated blocks of persistent data from the source data store to the destination data store.”

The patent application was filed on February 26, 2016 (13/777,329)

Configuring object storage system for I/O operations
VMware, Palo Alto, CA, has been assigned a patent (8,595,460) developed by four co-inventors for “configuring object storage system for input/output operations.”

The co-inventors are Rajesh Bhat, Sunnyvale, CA, Sanjay Acharya, Fremont, CA, Satyam B. Vaghani, and Chiao-Chuan Shih, San Jose, CA.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The storage system exports logical storage volumes that are provisioned as storage objects. These storage objects are accessed on demand by connected computer systems using standard protocols, such as SCSI and NFS, through logical endpoints for the protocol traffic that are configured in the storage system. When an input-output command (IO) is received at the storage system, an identifier is retrieved from the IO and translated into a logical storage volume identifier, and the IO is executed on storage locations referenced by a logical storage volume corresponding to the logical storage volume identifier.”

The patent application was filed on Aug. 26, 2011 (13/219,368).

Offloading storage operations to storage hardware using switch
VMware, Palo Alto, CA, has been assigned a patent (8,566,502) developed by Satyam B. Vaghani, Palo Alto, CA, for “offloading storage operations to storage hardware using a switch.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: “In a computer system with a disk array that has physical storage devices arranged as logical storage units and is capable of carrying out hardware storage operations on a per logical storage unit basis, a switch is provided to offload storage operations from a file system to storage hardware. The switch translates primitives used for performing storage operations into commands executable by the physical storage devices so that the data moving portion of the storage operations can be offloaded from the file system to the storage devices. ”

The patent application was filed on May 29, 2008 (12/129,409).