File server, file server control method, and storage system

摘要

Disclosed is a storage system that includes a first node and a second node. The first node and the second node are connected to a client and a storage device. The first node includes a first memory for cache data, receives data from the client, stores the data into the first memory, and controls the storing the content of the data into the storage device from the first memory in accordance with an instruction from the second node. The second node includes a second memory for the same cache data as the first memory. If the content of data in the storage device or the content of data in the second memory before the storing of the data is the same as the content of the data in the second memory, the second node instructs the first node not to store the content of the data into the storage device.

主权项

1. A storage system comprising:
a first node connected to a client and a storage device; and a second node connected to the client and the storage device; wherein the first node includes a first memory for storing cache data, receives first data from the client, stores the first data in the first memory, and controls storing content of the first data into the storage device from the first memory in accordance with an instruction from the second node; and wherein the second node includes a second memory for storing the same cache data as the first memory, and if content of data stored in the storage device or content of data stored in the second memory before the storing of the first data is the same as the content of the first data stored in the second memory, instructs the first node not to store the content of the first data into the storage device from the first memory.