A method and apparatus for providing very large logical volumes (Meta Device) in a storage system is provided. The storage system includes host controllers and disk controllers which communicate through a shared memory. I/O requests are received by the host controller and placed into request queues. The request queues are associated with logical devices. A number of request queues in the host controller are concatenated together to produce the larger logical volume. The large logical volume appears to the host as a single addressable logical unit. I/O requests to the large logical volume are analyzed by the host controller to determine which logical devices are actually needed to service the request. The host controller then makes the appropriate queue entries. Processing of the requests then occurs in the same fashion as if the request had been to a non-Meta Device. This allows the disk controllers and memory to operate without modification.