Abstract: A device manager manages assignments of a plurality of devices by two or more device clients. To this end, the device manager detects an operational failure with a device client running an application based at least partially on an assignment of one or more devices among the plurality of devices. Next, the device manager exclusively resets each assigned device reserved by the device client in response to the detection of the operational failure with the device client while preserving any reservation among the remaining devices.

Abstract: Provided are a method, system, and program for transferring data among a logical layer, physical layer, and storage device. The logical layer allocates a buffer to use to write data to a storage device. The physical layer manages access to the storage device. The logical layer determines an offset into the buffer based on a length of a physical header written by the physical layer and writes data to the buffer from the determined offset. The physical layer writes physical header information, wherein the physical header information does not extend past the offset in the buffer. The physical layer transfers content from the buffer to the storage device.

Abstract: An apparatus, system, and method are disclosed for data access management on a storage device connected to a storage area network. A client includes network connections to a first and second network, where the second network comprises a storage area network (SAN). The client also includes a storage management client and a storage agent. The storage agent is configured to minimize the amount of metadata processing that occurs on the client by sending the metadata or a copy thereof to a storage server to be stored in a centralized metadata database. The storage server also includes a storage manager that is configured to manage data access by the storage agent to the requested storage device.