PureSystems is an IBM product line of factory pre-configured components and servers also being referred to as an "Expert Integrated System". The centrepiece of PureSystems is the IBM Flex System Manager in tandem with the so-called "Patterns of Expertise" for the automated configuration and management of PureSystems.
PureSystems can host four different operating systems (AIX, IBM i, Linux, Windows) and five hypervisors (Hyper-V, KVM, PowerVM, VMware, Xen) on two different hardware architectures: Power Architecture and x86. PureSystems is marketed as a converged system, which packages multiple information technology components into a single product.
The architecture itself is called IBM Flex System.
It aims at managing hybrid cloud infrastructure environments "out of the box".
The basic intention is for the combination of integrated hardware and software that can be easily maintained. A similar concept had already been introduced with the IBM AS/400. Today, such systems are called converged systems. More specialized integrated hardware and software are referred to as appliances.
The compute nodes of the server blades can be x86 or Power Architecture and they can be used either individually or mixed in the same rack simultaneously, thus offering a hybrid ensemble which borrows from the zEnterprise/zBX ensemble (cf. Gameframe), including its ability to manage a combined physical/virtual hybrid environment from a single console.