SYNCHRONIZATION OF STORAGE TRANSACTIONS IN CLUSTERED STORAGE SYSTEMS

摘要

Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes processing systems configured to receive storage operations for storage drives coupled over a communication fabric. The data storage system includes a control processor configured to establish a timer synchronization signal and distribute the timer synchronization signal to the processing systems. Each of the processing systems is configured to assign timestamps to received storage operations based on a timestamp counter synchronized among the processing systems using the timer synchronization signal. The processing systems are configured to order committing of the storage operations to the storage drives based at least on the timestamps associated with the storage operations.

主权项

1. A data storage system, comprising:
a plurality of processing systems configured to receive storage operations for a plurality of storage drives coupled over a communication fabric, each of the plurality of storage drives configured to store data and retrieve the data stored on associated storage media responsive to the storage operations; a control processor configured to establish a timer synchronization signal and distribute the timer synchronization signal to the plurality of processing systems; each of the plurality of processing systems configured to assign timestamps to received ones of the storage operations based on a timestamp counter synchronized among the plurality of processing systems using the timer synchronization signal; and the plurality of processing systems configured to order committing of the storage operations to the plurality of storage drives based at least on the timestamps associated with the storage operations.