首页>
外国专利>
Method to Perform Parallel Data Migration in a Clustered Storage Environment
Method to Perform Parallel Data Migration in a Clustered Storage Environment
展开▼
机译:在群集存储环境中执行并行数据迁移的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A clustered storage array consists of multiple nodes coupled to one or more storage systems. The nodes provide a LUN-device for access by a client. The LUN-device maps to a source logical unit corresponding to areas of storage on the one or more storage systems. A target logical unit corresponds to different areas of storage on the one or more storage systems. The source logical unit is migrated in parallel by the multiple nodes to the target logical unit. Data to be copied from the source logical unit to the target logical unit are grouped into data chunks. Two or more of the plurality of nodes concurrently attempt to acquire an exclusive lock for a set of data chunks. The node acquiring the exclusive lock migrates the set of data chunks from the source logical unit to the target logical unit, while the exclusive lock is used to prevent other nodes from migrating the set of data chunks.
展开▼