Machine type

6241(G3A)

Firmware

Lenovo-signed firmware

Form factor

4U rack.

Processor

Models with E7 v4 processors: One, two or four Intel Xeon E7-4800 v4 or E7-8800 v4 processors, each in a Compute Book. Processor options have between 4 and 24 cores with core frequencies up to 3.2 GHz. Three QPI links up to 9.6 GT/s each. Compute Books have TruDDR4 memory up to 1866 MHz, but cannot be mixed. Up to 60 MB L3 cache. Intel C602J chipset.

Models with E7 v3 processors: One, two or four Intel Xeon E7-4800 v3 or E7-8800 v3 processors, each in a Compute Book. Processor options between 4 cores (3.2 GHz) and 18 cores (up to 2.5 GHz). Three QPI links up to 9.6 GT/s each. Compute Books have either DDR3 memory up to 1600 MHz or TruDDR4 memory up to 1866 MHz, but cannot be mixed. Up to 45 MB L3 cache. Intel C602J chipset.

Models with E7 v2 processors: Up to four Intel Xeon E7-4800 v2 or E7-8800 v2 processors, each in a Compute Book. Each processor has between six cores (up to 3.4 GHz) and 15 cores (up to 2.8 GHz). Three QPI links up to 8.0 GTps each. Compute Books have DDR3 memory up to 1600 MHz memory speed. Up to 37.5 MB L3 cache. Intel C602J chipset.

Memory

Up to 96 DIMM sockets (24 DIMMs per processor, installed in the Compute Book). RDIMMs and LRDIMMs (Load Reduced DIMMs) are supported, but memory types cannot be intermixed. Memory is either TruDDR4 memory (up to 1866 MHz) or DDR3 memory (up to 1600 MHz), depending on the Compute Book selected. DDR3 memory and TruDDR4 memory cannot be mixed in the same Compute Book. Compute Books with DDR3 memory and Compute Books with TruDDR4 memory cannot be mixed in the same system.

Memory maximums

Models with TruDDR4 Compute Books:

• With RDIMMs: Up to 3 TB with 96x 32 GB RDIMMs and four processors
• With LRDIMMs: Up to 6 TB with 96x 64 GB LRDIMMs and four processors

Models with DDR3 Compute Books:

• With RDIMMs: Up to 1.5 TB with 96x 16 GB RDIMMs and four processors
• With LRDIMMs: Up to 6 TB with 96x 64 GB LRDIMMs and four processors

Memory protection

ECC, Chipkill, RBS, memory mirroring, and memory rank sparing.

Disk drive bays

Up to 16 1.8" SSD bays, or up to 8 2.5" hot-swap SAS/SATA bays, or up to 4x 2.5” hot-swap PCIe NVMe SSD drive bays.

Maximum internal storage

Up to 30.7 TB with 8x 3.84 TB 2.5-inch SAS SSDs or
Up to 16 TB with 8x 2 TB 2.5-inch NL SAS HDDs, or
Up to 8 TB with 4x 2 TB 2.5-inch PCIe NVMe SSDs.

RAID support

12 Gb SAS/SATA RAID 0, 1, or 10 with ServeRAID M5210; optional upgrades to RAID 5 and 50 are available (zero-cache; 1 GB non-backed cache; 1 GB or 2 GB flash-backed cache). Upgrades to RAID 6 or 60 available for M5210 with 1 GB or 2 GB upgrades.

Optical and tape bays

No internal bays. See http://support.lenovo.com/en/documents/pd011281 
for external DVD options.

Network interfaces

Mezzanine LOM (ML2) slot for dual-port 10 GbE cards with SFP+ or RJ-45 connectors or quad-port GbE cards with RJ-45 connectors. See the Ethernet column in the Standard models table. Dedicated 1 GbE port for systems management.

As listed in the Standard models section, Model B3x includes the Broadcom NetXtreme II ML2 Dual Port 10GbE SFP+ adapter as standard. All other standard models include an Intel I350-T4 ML2 Quad Port GbE Adapter (I350-AM4 based).

The Broadcom NetXtreme II ML2 Dual Port 10GbE SFP+ Adapter has the following specifications:

Dual-port 10 Gb Ethernet connectivity

Broadcom BCM57810S ASIC

SFP+ ports supporting fiber optic and direct-attach copper (DAC) cables

The Intel I350-T4 ML2 Quad Port GbE Adapter has the following Specifications:

Quad-port 1 Gb Ethernet connectivity, Intel I350-AM4 ASIC

RJ45 ports for copper cables

PCI Expansion slots

Up to 11 PCIe slots plus dedicated Mezzanine LOM slot.
The slots are as follows:

• Two PCIe 3.0 x8 slots for internal RAID controllers (Storage Book)
• Two PCIe 3.0 x16 slots (x16-wired), half length, full height (Primary I/O Book)
• One PCIe 3.0 x16 (x8-wired), half length, full height (Primary I/O Book)
• One ML2 slot for network adapter (PCIe 3.0 x8) (Primary I/O Book)
• Two optional I/O Books, each with three slots, all full height (using these I/O Books requires four processors). Optional books are hot-swap capable.

Optional I/O Books can be either of the following options:

• Half-length I/O Book: Two PCIe 3.0 x8 slots, one PCIe 3.0 x16 slot.
• Full-length I/O Book: Two PCIe 3.0 x16, one PCIe 2.0 x4 slot; two aux power connectors: 150 W and 75 W. Supports one double-wide GPU up to 300 W.

Ports

Front: Two USB 3.0, one USB 2.0, and one DB-15 video ports. Rear: Four USB 2.0, one DB-15 video, one DB-9 serial, and one 1 GbE RJ-45 systems management. Internal: USB 2.0 port for embedded hypervisor.

Cooling

Calibrated Vectored Cooling™. Up to ten redundant hot-swap fan packs and five fan zones with N+1 fan redundancy. Each fan pack includes two counter-rotated dual-motor fans.

Power supply

Up to four redundant hot-swap 900 W AC or 1400 W AC power supplies (all 80 PLUS Platinum certified). -48 V 750 W DC power supplies are available through CTO.

Hot-swap parts

Drives, power supplies, fans, and optional I/O Books.

Video

Matrox G200eR2 with 16 MB memory that is integrated into the IMM2. Maximum resolution is 1600 x 1200 at 75 Hz with 16 M colors.

Security features

Power-on password, admin password
and two Trusted Platform Modules (TPMs).

Systems management

UEFI, Integrated Management Module II (IMM2) with remote presence feature, Predictive Failure Analysis, Light Path Diagnostics, Automatic Server Restart, Lenovo XClarity Administrator, IBM Systems Director and Active Energy Manager™, and ServerGuide.

Operating systems

Microsoft Windows Server 2012 R2, 2012, and 2008 R2, RHEL 6 and 7, SLES 11 and 12, and VMware vSphere ESXi. See the Supported operating systems section for details.

Limited warranty

Three-year customer-replaceable unit (CRU) and onsite limited warranty with 9x5 next business day (NBD).

Service and support

Optional service upgrades are available through Lenovo Services offerings: 4-hour or 2-hour response time, 8-hour fix time, 1-year or 2-year warranty extension, and remote technical support for Lenovo hardware and some Lenovo / OEM applications.

Dimensions

Height: 173 mm (6.8 in.), width: 482 mm (19.0 in.), depth: 804 mm (31.6 in), depth with cable management brackets installed: 836 mm (32.9 in), depth with Full-length I/O Book installed: 921 mm (36.2 in)

Weight

Minimum configuration: 35.9 kg (79.2 lb), typical: 46.4 kg (102.3 lb), maximum: 54.7 kg (120 lb)