Chapter 3. Mid-range systems 253.1.2 Hardware summaryThe N62x0 modular disk storage system contains the following hardware: Up to 2880 TB raw storage capacity 4 GB to 32 GB random access memory 512 MB to 4 GB nonvolatile memory Integrated Fibre Channel, Ethernet, and SAS ports Quad-port 4 Gbps adapters (optional) Up to four Performance Acceleration Modules (Flash Cache) Diagnostic LED/LCD Dual redundant hot-plug integrated cooling fans and autoranging power supplies 19 inch, rack-mountable unitN6210The IBM System Storage N6210 includes these storage controllers: Model C20: An active/active dual-node base unit Model C10: A single-node base unitN6240The IBM System Storage N6240 includes these storage controllers: Model C21: An active/active dual-node base unit Model E11: A single-node base unit Model E21: The coupling of two Model E11sExx models contain an I/O expansion module that provides additional PCIe slots. The I/Oexpansion is not available on Cxx models.N6270The IBM System Storage N6270 includes these storage controllers: Model C22: An active/active dual-node base unit that consists of a single chassis with twocontrollers and no I/O expansion modules Model E12: A single-node base unit that consists of a single chassis with one controllerand one I/O expansion module Model E22: The coupling of two E12 modelsExx models contain an I/O expansion module that provides additional PCIe slots. The I/Oexpansion is not available on Cxx models3.1.3 Functions and features common to all modelsThis section describes the functions and features that are common to all eight models.Fibre Channel, SAS, and SATA attachmentAll models include Fibre Channel, SAS, and SATA attachment options for disk expansionunits. These options are designed to allow deployment in multiple environments, includingdata retention, NearStore, disk-to-disk backup scenarios, and high-performance,mission-critical I/O intensive operations
