Abstract: A solid state drive having a drive aggregator configured to interface with a host system, and a plurality of component solid state drives connected to the drive aggregator. Each of the component solid state drives has a controller capable of processing commands from host systems. The drive aggregator is configured to receive commands from the host system and transmit commands to the component solid state drives to implement the commands received from the host system.

Abstract: A solid state drive having a drive aggregator configured with multiple host interfaces for parallel and/or redundant connections to one or more host systems. The solid state drive has a plurality of component solid state drives connected to the drive aggregator. Each of the component solid state drives has a controller capable of processing commands from host systems. The drive aggregator is configured to receive commands in the host interfaces concurrently and implement the commands received from the host system using the plurality of component solid state drives.

Abstract: A solid state drive having at least one component solid state drive, a spare solid state drive, and a drive aggregator. The drive aggregator has at least one host interface, at least one drive interface connected to the at least one component solid state drive, and an interface connected to the spare solid state drive. The drive aggregator is configured to maintain, in the spare solid state drive, a copy of a dataset that is stored in the component solid state drive. In response to a failure of the component solid state drive, the drive aggregator is configured to substitute a function of the component solid state drive with respect to the dataset with a corresponding function of the spare solid state drive, based on the copy of the dataset maintained in the spare solid state drive.

Abstract: A solid state drive having a drive aggregator and multiple component solid state drives. The drive aggregator associates the host interfaces with different logical address spaces, interprets commands received from the host interfaces in the different logical address spaces, and implements the commands using the plurality of component solid state drives. Some of the host interfaces can be configured to share a common logical address space. Some of the logical address spaces can be configured to have an overlapping region that are hosted on the same set of memory units such that the memory units can be addressed in any of the logical address spaces having the overlapping region.