Abstract: A computer-based system and method for providing a distributed write buffer in a storage system, including: obtaining a write request at a primary storage server to store data associated with the write request in a non-volatile storage of the primary storage server; and storing the data associated with the write request in a persistent memory of the primary storage server or in a persistent memory of an auxiliary storage server based on presence of persistent memory space in the primary storage server. The write request may be acknowledged by the primary storage server after storing the data associated with the write request in the persistent memory of the primary storage server or in the persistent memory of the auxiliary storage server.

Abstract: Systems and methods of managing data storage, on non-volatile memory (NVM) media, by at least one processor may include: receiving a first storage request, to store a first data block on the NVM media; storing content of the first data block on a cache memory module; scheduling a future movement action of the content of the first data block from the cache memory module to the NVM media; and moving, transmitting or copying the content of the first data block from the cache memory module to at least one NVM device of the NVM media, according to the scheduled movement action.

Abstract: computer-based system and method for selecting a write unit size for a block storage device, includes performing a plurality of sequences of I/O operations to the block storage device, each sequence having a write unit size from a plurality of write unit sizes; collecting performance metrics of the sequences of I/O operations; and selecting the write unit size for the block storage device from the plurality of write unit sizes based on the performance metrics. In some cases, preconditioning is performed prior to performing the plurality of sequences of I/O operations by emptying the block storage device; and writing data to the block storage device to fill the block storage device above a predetermined level.