Patent attributes
A technique for providing active-active access to pooled block-based objects and pooled file-based objects by multiple storage processors over distance in a metro-cluster includes virtualizing locally attached LUNs and making the virtualized LUNs available to all the storage processors in the metro-cluster. Storage pools and internal file systems operate on each of the storage processors and coordinate with one another to maintain consistent storage allocation and a consistent file system image across all storage processors in the metro-cluster. The resulting arrangement allows storage processors in the metro-cluster to access both block-based data objects and file-based data objects in an active-active manner, while maintaining consistency across all storage processors and allowing customers to benefit from the advantages of pooled data objects.
