Storage device, computer-readable recording medium, and storage control method

摘要

A storage device being one of a plurality of storage devices storing data includes a memory and a processor coupled to the memory. The processor executes determining, when having received a new request and a new priority information during a preparation for an execution of another update processing, whether a new priority indicated by the new priority information is higher than a priority of the update processing in the preparation. The process including canceling the update processing in the preparation when having determines at the determining that the new priority is higher than the priority of the update processing in the preparation. The process includes forwarding the new request and the new priority information to another storage device when having determined at the determining that the new priority is higher than the priority of the update processing in the preparation.

主权项

1. A storage device being one of a plurality of storage devices storing data, the storage device comprising:
a memory; and a processor coupled to the memory, wherein the processor executes a process comprising: receiving a request for an update processing of the data and a priority information indicating a priority of the update processing; storing the request for an update processing and the priority of the request; determining, when having received a new request and a new priority information during a preparation for an execution of update processing corresponding to another request stored at the storing, whether or not a new priority indicated by the new priority information is higher than a priority of the update processing in the preparation; canceling the update processing in the preparation when having determined at the determining that the new priority is higher than the priority of the update processing in the preparation; forwarding the new request and the new priority information to another storage device storing the data when having determined at the determining that the new priority is higher than the priority of the update processing in the preparation; forwarding a response indicative of failure of the update processing to a transmission origin of the new request when having determined at the determining that the new priority is lower than the priority of the update processing in the preparation; canceling the update processing when the response indicative of failure of the update processing was received from the other storage device, and forwarding the response indicative of failure of the update processing to a transmission origin of the new request when the response indicative of failure of the update processing was received from the other storage device.