Violin Memory Inc.

Violin Systems LLC

Maxim Adelman

Jon C R Bennett

Stephen Fischer

A system and method for transmitting stateful data over a highly reliable stateless communications channel between a master device and a slave device is provided. Data that has been transmitted from the master device to the slave device is maintained in a buffer at the master device until the slave devices completes the actions required by commands accompanying the data and reports successful completion of the actions. Should an error occur in the data or processing of the data at the slave device an error message is sent from the slave device to the master device causing the stored transmitted data that has not as yet been acknowledged to be retransmitted to the slave device.

Transmission of stateful data over a stateless communications channel

A memory system is described, where a plurality of memory modules is connected to a memory controller. The power status of each of the memory modules is controlled, depending on the functions being performed by the memory module. When no read or write operation is being performed on a particular memory module, at least a portion of the circuitry may be operated in a lower power mode. A memory circuit associated with the memory module may be placed in a low power mode by disabling a clock. The memory circuit data integrity may be secured by issuing refresh commands while when the memory circuit is in the lower power mode, by enabling the clock, issuing the refresh command, and disabling the clock after completion of the refresh operation.

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New York, NY, United States of America

Maxim Adelman