STORAGE ARRAY SIDE WRITE LOCKING

Systems and methods are described herein that provide storage array side write locking. In embodiments, data is on storage arrays that are shared by a plurality of clients, and the storage array prevents write contentions on the shared data by employing a storage array side write locking strategy that uses a write lock table to determine whether requested data is currently being serviced by one of the plurality of clients. For example, upon receiving a request for data, the storage array checks a lock table to determine whether any of the requested data is currently write locked (which indications current use of the data). If the grains are not write locked, then the data request may be allowed. If the grains are write locked, then the data request may be denied. In embodiments, the storage array takes steps to determine whether write locks have become stale and should be removed.