Lenovo Flex System Enterprise Chassis with 2 x 2500W AC PSU, Rackable

Flex System is the next generation of blade technology with more performance and bandwidth and far more capability to consolidate and virtualize than previous systems. Flex System is anchored by the Flex System Enterprise Chassis which enables high-speed performance with integrated servers and networking. Furthermore, its flexible design can meet the needs of varying workloads with independently scalable IT resource pools for higher utilization and lower cost per workload.

Machine type                                                                   8721
Firmware                                                                          Chassis with first generation Chassis Management Module (68Y7030): IBM-signed firmware
                                                                                       Chassis with Chassis Management Module 2 (00FJ669): Lenovo-signed firmware
Form factor                                                                      10U rack-mounted unit.
Maximum number of compute nodes                               14 half-wide (single bay), seven full-wide (two bays), three double-height full-wide (four bays) or one quadruple-height full-wide (8 bays). Mixing is supported.
Chassis per 42U rack                                                      Four.
Nodes per 42U rack                                                        56 half-wide, or 28 full-wide.
Management Chassis                                                      Management Modules 2 (CMM2) modules provide chassis management. One or two CMM2s standard, depending on the model and the use of two provides redundancy. Earlier models of the Enterprise Chassis use the first generation CMM. The CMM2 interfaces with the integrated management module (IMM2) integrated in each                                                                                         compute node in the chassis. Optional Lenovo XClarity Administrator for hardware resource management with integrators to VMware vCenter and Microsoft System Center, including virtualization, networking, and storage management. Chassis with first generation CMM can be upgraded to CMM2 however CMM and CMM2 cannot be                                                                                         mixed.
I/O architecture                                                               Up to eight lanes of I/O to an I/O adapter card, with each lane capable of up to 16 Gbps bandwidth. Up to 16 lanes of I/O to a half-wide node with two adapters. A wide variety of networking solutions, including Ethernet, Fibre Channel, Fibre Channel over Ethernet (FCoE), and InfiniBand.
Power supplies                                                                Up to six power supplies that can provide N+N or N+1 redundant power. AC power supplies are 80 PLUS Platinum certified and provide over 94% efficiency at 50% load and 20% load. Each power supply contains two independently powered 40 mm cooling fan modules. Power supply options are 2500W AC, 2500W HVDC and 2500W                                                                                        -48V DC power supplies. All installed power supplies must be identical.
Fan modules                                                                    Ten fan modules (eight 80 mm fan modules and two 40 mm fan modules); Four 80 mm and two 40 mm fan modules standard.
Dimensions                                                                      Height: 440 mm (17.3 in)  Width: 447 mm (17.6 in)  Depth: 800 mm (31.5 in) (measured from front bezel to rear of chassis), 840 mm (33.1 in) (measured from node latch handle to the power supply handle)
Weight                                                                             Minimum configuration: 96.62 kg (213 lb)  Maximum configuration: 220.45 kg (486 lb)
Sound level                                                                     7.5 bels (declared)
Temperature                                                                    Operating air temperature 5°C to 40°C
Electrical power                                                               AC Input power: 200 - 240 V ac (nominal), 50 or 60 Hz; HVDC DC Input power: 240 - 380 V dc (nominal); -48 V DC Input power: -48V to -60 V dc (nominal);  Minimum configuration: 0.51 kVA (two power supplies); Maximum configuration: 13 kVA (six power supplies)
Power consumption                                                        12,900 watts maximum