Abstract: A method, computer program product, and computing system for writing, from a first node to a second node, a first portion of data from a memory pool in the first node defined by, at least in part, a first pointer. One or more input/output (IO) operations may be received while writing the first portion of data to the second node. Data from the one or more IO operations may be stored within the memory pool after the first pointer.

Abstract: A method, computer program product, and computer system for receiving, by a master controller, a request to create a read-only snapshot for an asynchronous source volume, wherein the master controller may be assigned ownership of the read-only snapshot. A peer controller may be assigned as a secondary owner of the read-only snapshot. Ownership of the peer controller as the secondary owner of the read-only snapshot may be revoked based upon a change in metadata of the read-only snapshot. The read-only snapshot may be replicated, asynchronously, from a replication source to a replication destination.

Abstract: Cassandra SSTable data is transformed to provide data rows that are a consistent size such that data in each row has a length that is contained within a selected fixed sized kilobyte segment for deduplication. Tables of a Cassandra cluster node are translated in parallel to JSON format using Cassandra SSTableDump and the table rows are parsed to provide data rows corresponding to the data in each table row. Each row of data is padded with a predictable pattern of bits such that the data row has a length corresponding to the selected fixed segment size and has boundary locations that correspond to multiple of the selected segment size. Since each row of data starts on a segment boundary, duplicate rows of data will be identified wherever they move within a table.

Abstract: Maintaining multiple cache areas in a storage device having multiple processors includes loading data from a specific portion of non-volatile storage into a local cache slot in response to a specific processor of a first subset of the processors performing a read operation to the specific portion of non-volatile storage, where the local cache slot is accessible to the first subset of the processors and is inaccessible to a second subset of the processors that is different than the first subset of the processors and includes converting the local cache slot into a global cache slot in response to one of the processors performing a write operation to the specific portion of non-volatile storage, wherein the global cache area is accessible to the first subset of the processors and to the second subset of the processors. Different ones of the processors may be placed on different directors.