Abstract: An information handling system includes a plurality of physical disks, a memory to store metadata for the physical disks, and a controller. The controller is configured to communicate with the physical disks and with the memory. The controller to receive a request to enable a redundant array of independent disks (RAID) mode on the physical disks, to allocate a portion of the memory to store the metadata while in the RAID mode, to store the metadata for the physical disks in each of the physical disks and in the portion of the memory, and to update and synchronize the metadata in response to a configuration change of the physical disks.

Abstract: An information handling system and method provide for receiving a request to remove a selected physical disk from a disk group realizing a virtual disk in a redundant array data storage subsystem, determining whether removal of the selected physical disk is feasible, and, when feasible, removing the selected physical disk from the disk group without deleting the virtual disk realized by the disk group and reconstructing the virtual disk to be realized by the disk group using only the proposed number of physical disks, wherein the proposed number of physical disks is less than an initial number of physical disks of the disk group.

Abstract: An information handling system includes a plurality of physical disks, a memory to store metadata for the physical disks, and a controller. The controller is configured to communicate with the physical disks and with the memory. The controller to receive a request to enable a redundant array of independent disks (RAID) mode on the physical disks, to allocate a portion of the memory to store the metadata while in the RAID mode, to store the metadata for the physical disks in each of the physical disks and in the portion of the memory, and to update and synchronize the metadata in response to a configuration change of the physical disks.

Abstract: An information handling system and method provide for receiving a request to remove a selected physical disk from a disk group realizing a virtual disk in a redundant array data storage subsystem, determining whether removal of the selected physical disk is feasible, and, when feasible, removing the selected physical disk from the disk group without deleting the virtual disk realized by the disk group and reconstructing the virtual disk to be realized by the disk group using only the proposed number of physical disks, wherein the proposed number of physical disks is less than an initial number of physical disks of the disk group.