Amazon.com, Inc.
Storage device write barriers

Abstract:

Technologies are provided for supporting storage device write barriers. A storage device can be configured to associate a data access command with a write barrier. The write barrier can be used to indicate that one or more data access commands should be processed before one or more other data access commands are processed. For example, a host computer can transmit one or more data access commands to a storage device. The storage device can determine that the one or more data access commands are associated with a write barrier. The host computer can continue to transmit additional data access commands to the storage device. However, the storage device will not process the additional data access commands until after the one or more data access commands associated with the write barrier have been processed.