Sandisk Il Ltd.

Rotem Gazit

Yehuda Hahn

Donald Ray Bryant-Rich

Ziv Baduach

A device for integrating file systems includes a plurality of storage device interfaces. Each storage device interface is operatively coupleable to a corresponding storage device, and each storage device has a corresponding storage device file system. The device also includes a host interface and a hub configured for operatively connecting between the storage device interfaces and the host interface. The hub is operative to create a virtual file system that aggregates the storage device file systems. The virtual file system is configured to represent to a host, via the host interface, each file of a first group and to refrain from representing to the host each file of a second group, where the files are stored in one or more of the plurality of storage devices. Each file of the first group satisfies a first condition and each file of the second group fails to satisfy the first condition.

Device and method of integrating file systems

The present invention enables a user to increase storage capacity for a host by using multiple storage devices. File systems are virtualized regardless of any difference in file system format. The invention may be embodied as a device for integrating file systems or as a method of integrating file systems. The device has one or more storage device interfaces for storage devices, a host interface, and a hub connected to the interfaces. The hub creates a virtual file system that aggregates the storage device file systems of storage devices that are connected to the storage device interfaces. The method of integrating file systems includes reading file systems, interpreting them, creating a logical structure containing data of the file systems, and generating in a memory sectors that map the logical structure into a virtual file system.

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Kfar Saba, Israel

Rotem Gazit