Contention arbitrating method and system for shared disk of double-control storage array
A shared disk, dual-control storage technology, applied in the field of resource management, can solve problems such as data errors
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[0017] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0018] figure 2 Shown is the flow chart of the shared disk contention arbitration method of the dual-controller storage array of the present invention, including the following steps:
[0019] Step 201: Pre-reserving a storage space of a preset size in the disk to be contended for as an occupation information field; wherein, the occupation information field is used to save the controller ID and time stamp;
[0020] The occupation information field is used to save the ID of the controller occupying the disk to be contended for and the time stamp when the controller uses the disk to be contended for.
[0021] Step 202: After the first controller queries the disk to be contended to obtain the state of...
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