Abstract: A method, program and system for recovering data from a failed drive in a RAID system are provided. The invention comprises assigning a plurality of storage drives within the RAID to a defined volume group. If a failure of a drive in the volume group is detected, the failed drive is removed from the volume group, and data from the failed drive is redistributed to the drives remaining in the volume group. In another embodiment of the present invention, a previously unused drive in the RAID is assigned to the volume group to replace the failed drive, and the data on the failed drive is reconstructed on the newly assigned drive. In yet another embodiment, two or more previously unused drives are assigned to the volume group to replace each failed drive. The data from the failed drive is then re-striped across the remaining drives in the volume group, including the newly assigned drives.

Abstract: A method, program and system for recovering data from a failed drive in a RAID system are provided. The invention comprises assigning a plurality of storage drives within the RAID to a defined volume group. If a failure of a drive in the volume group is detected, the failed drive is removed from the volume group, and data from the failed drive is redistributed to the drives remaining in the volume group. In another embodiment of the present invention, a previously unused drive in the RAID is assigned to the volume group to replace the failed drive, and the data on the failed drive is reconstructed on the newly assigned drive. In yet another embodiment, two or more previously unused drives are assigned to the volume group to replace each failed drive. The data from the failed drive is then re-striped across the remaining drives in the volume group, including the newly assigned drives.

Abstract: A storage array contains firmware which maintains topology and other information in a computer system. Individual host computers each have a host context agent which interfaces with both thin client devices and the storage array. A user by a simple GUI command or set of commands may update and/or retrieve topology and other computer system configuration information which is stored by either a host computer or the storage array or both.

Abstract: The present invention is directed to a system and method for disabling and recreating a snapshot volume. A method of disabling repository volume activity corresponding to a point-in-time image and retaining repository volume attributes may include initiating a command in a electronic data storage system. The command disables copy-on-write activity to a repository volume created in relation to a first point-in-time image of a base volume, in which repository volume attributes are retained suitable for providing a repository volume corresponding to a second point-in-time image. A method of creating a point-in-time image of a base volume may include initiating a command to create a second point-in-time image of a base volume. The second point-in-time image is created utilizing a repository volume having attributes retained from a repository volume created previously with respect to a first point-in-time image.