Emc Corporation

Emc IP Holding Company LLC

David Erel

Assaf Natanzon

Philip Derbeko

Anat Eyal

Daniel S Cobb

A method, computer program product, and computing system for receiving an indication of an intent to restore at least a portion of a data array based upon a historical record of the data array. One or more changes made to the content of that data array after the generation of the historical record may be identified, thus generating a differential record. One or more data entries within a cache memory system associated with the at least a portion of a data array may be invalidated based, at least in part, upon the differential record.

System and method for cache management

A method, computer program product, and computing system for copying a content directory associated with a cache system from a volatile memory system to a non-volatile memory system. A plurality of data requests concerning a plurality of data actions to be taken on an electro-mechanical storage device associated with the cache system are received on the cache system. The content directory on the volatile memory system is updated based, at least in part, upon the plurality of data requests. The plurality of data requests are stored on tracking queue included within the electro-mechanical storage device.

System and method for improving cache performance

A method, computer program product, and computing system for receiving an indication that a target virtual machine is going to be migrated from a first operating environment to a second operating environment. The target cache system is associated with target virtual machine. An auxiliary virtual machine is generated within the second operating environment. An auxiliary cache system is associated with the auxiliary virtual machine. The target virtual machine and the auxiliary virtual machine are connected. IO requests for the target virtual machine are mirrored to the auxiliary virtual machine. At least a portion of cache data included within a target memory system associated with the target cache system is copied to an auxiliary memory system associated with the auxiliary cache system. The target virtual machine is migrated from the first operating environment to the second operating environment.

System and method for migrating virtual machines

A computer implemented method, system, and computer program product for cache management comprising recording metadata of IO sent from the server to a storage array, calculating a distribution of a server cache based on the metadata, receiving an IO directed to the storage array, and revising an allocation of the server cache to the plurality of storage mediums based on the calculated distribution and the IO.

Flash cache partitioning

A method, computer program product, and computing system for copying a cache system from a first machine to a second machine, wherein the cache system includes cache content and a content directory, thus generating a duplicate cache system on the second machine. The duplicate cache system includes duplicate cache content and a duplicate content directory. A plurality of data requests concerning a plurality of data actions to be taken on a data array associated with the first machine are received on the first machine. The plurality of data requests are stored on a tracking queue included within the data array associated with the first machine.

System and method for copying a cache system

A method, computer program product, and computing system for receiving an indication that a virtual machine is going to be migrated from a first operating environment to a second operating environment. The mode of operation of a cache system associated with the virtual machine is downgraded. Content included within a memory device currently associated with the cache system is copied to a memory device to be associated with the cache system. The memory device currently associated with the cache system is detached from the virtual machine. The virtual machine is migrated from the first operating environment to the second operating environment.

System and method for live migration of a virtual machine with dedicated cache

A method, computer program product, and computing system for receiving, on a cache system, a plurality of data write requests, wherein each data write request identifies a data portion to be written to a data array associated with the cache system. The data portions associated with the data write requests are written to the cache system. The data portions associated with the data write requests are queued until the occurrence of a commit event. Upon the occurrence of the commit event, a consolidated write operation is performed to write the data portions associated with the data write requests to the data array.

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Shoham, Israel

David Erel