| 摘要 |
<p>A method, computer cluster and computer unit for performing storage access shift between computer units. A redundant computer cluster comprises computer units and a shared storage unit. The computer units interface the shared storage unit, which stores data storage resources to which access has been established by a replicated service unit executed the computer cluster. When switchover condition associated with the replicated service unit is detected, the data storage resources to which access has been established from the service unit are first released in the service unit replica that will enter standby state. Thereafter, the access is established to the data storage resources in the service unit replica that will enter active state. Only then the replica of the service unit is allowed to become active. The benefits of the invention are related to the improved performance and reliability of file system access from a redundant multi-node computer cluster.</p> |
