Overview of the DS8000 series models

The DS8000® series offers various choices of base and expansion models, so you can configure storage units that meet your performance and configuration needs.

DS8100
The DS8100 (Models 921 and 931) features a dual two-way processor complex and support for one expansion model.
DS8300
The DS8300 (Models 922, 932, 9A2, and 9B2) features a dual four-way processor complex and support for up to four expansion models. Models 9A2 and 9B2 support two IBM® System Storage® System logical partitions (LPARs) in one storage unit.
DS8700
The DS8700 (Model 941) provides the option of a dual two-way processor complex (feature code 4301) or dual-four way processor complex (feature code 4302). A dual four-way processor complex provides support for up to four expansion models (94E). (Dual LPAR support is not available for the DS8700.)
DS8800
The DS8800 introduced the high-density storage enclosure that supports 24 small form factor 2.5" SAS drives in a 2U (height) factor.

The DS8800 (Model 951) provides the option of a dual two-way processor complex or dual-four way processor complex. A dual four-way processor complex provides support for up to three expansion models (95E).

DS8870
The DS8870 is the latest and most advanced disk enterprise storage system in the DS8000 series. It represents the latest in the series of high-performance and high-capacity disk storage systems. The DS8870 uses IBM POWER7® processor technology to help support higher performance.

The DS8870 (Model 961) provides the option of a 2-core, 4-core, 8-core, or 16-core processor complex. The DS8870 supports up to three expansion models (96E).