| 摘要 |
A cluster network may manage access to a RAID array by allowing only one controller of a group of controllers to access the same array at the same time. Tokens may be assigned for access to a given array by an appointed master controller. All other controllers requesting access to the array must request a token from the master. After the token has been assigned, the master may request the assigned token user to yield its access to the array in favor of another request. To detect network errors, each controller may monitor one or more neighboring controllers.
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