Storage System and Method for Processing Data Operation Request

摘要

A storage system and a method for processing a data operation request are disclosed. The method is applied to a storage system that has a write once read many (WORM) function. In the method, after the storage system receives a data operation request, which is used to change data stored in the storage system, sent by an application server, the storage system acquires a time difference between a real-time clock (RTC) and a reference clock, wherein the RTC is configured to provide system time for the storage system, and the reference clock cannot be modified when the system is running. Then, the storage system determines whether the time difference is greater than an accumulated time precision error of the reference clock, and refuses to execute the data operation request when the time difference is greater than the accumulated time precision error.

主权项

1. A storage system, wherein the storage system is a storage system that has a write once read many (WORM) function, and comprises:
a storage device configured to store data; and a controller, comprising:
a real-time clock (RTC) configured to provide system time for the storage system;a reference clock configured to verify the system time of the storage system, wherein the reference clock cannot be modified when the system is running; and
a processor configured to:
receive a data operation request sent by an application server, wherein the data operation request is used to change the data stored in the storage device;acquire a time difference between the RTC and the reference clock;determine whether the time difference is greater than an accumulated time precision error of the reference clock; andrefuse to execute the data operation request when the time difference is greater than the accumulated time precision error.