Standard Specifications - Lenovo 8721 Product Manual

Standard specifications

The following table lists the standard specifications.
Table 1. Standard specifications
Components Specification
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 14 half-wide (single bay), seven full-wide (two bays), three double-height full-wide (four bays) or
number of one quadruple-height full-wide (8 bays). Mixing is supported.
compute
nodes
Chassis per Four.
42U rack
Nodes per 56 half-wide, or 28 full-wide.
42U rack
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 Up to eight lanes of I/O to an I/O adapter card, with each lane capable of up to 25 Gbps
architecture 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 Up to six power supplies that can provide N+N or N+1 redundant power. AC power supplies are
supplies 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 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 AC Input power: 200 - 240 V ac (nominal), 50 or 60 Hz
power -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 12,900 watts maximum
consumption
Flex System Enterprise Chassis 4