IBM x3950 X5 User's Guide download pdf (Page 9)

Ultrascalability combined with extreme availability

features and industry-leading performance

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astonishing 937,600 IOPS for a single two-node server.

Each customer-installable eXFlash option includes a drive cage, SSD backplane, and two x4

SAS/SATA cables, which can be installed in seconds as a single unit. One or two ServeRAID

controllers are required per eXFlash option. For RAID support, use one ServeRAID-M1015,

M5014, M5015, or one M5025 controller or Fibre Channel adapter per multiple external IBM

System Storage expansion units. For enhanced IOPS throughput, use one ServeRAID

B5015 non-RAID controller, which is optimized for SSD IOPS performance. (Note: Because

SSDs offer triple

the reliability of SAS HDDs, RAID support is less necessary.) Each adapter

requires a PCIe slot. For maximum IOPS performance, use two ServeRAID-B5015

controllers per eXFlash option.

Supported single-chassis configurations include:

• 4 2.5-inch HDDs + 8 1.8-inch SSDs (with 1 eXFlash option)

• 8 2.5-inch HDDs

• 16 1.8-inch SSDs (with 2 eXFlash options)

• Plus 2 High IOPS adapters in 2 adapter slots

Supported two-chassis configurations include:

• 8 2.5-inch HDDs + 16 1.8-inch SSDs (with 2 eXFlash options)

• 16 2.5-inch HDDs

• 32 1.8-inch SSDs (with 4 eXFlash options)

• Plus 4 High IOPS adapters in 4 adapter slots (2 per chassis)

An optional (ultraslim, 0.5”) optical drive with a SATA interface is supported in all x3850 X5

and x3950 X5 servers. An external USB floppy drive or optical drive may be used, if needed.

For still more storage, NAS, iSCSI SAN, or FC SAN external expansion options can be

added, using an optional controller.

High-Performance Adapter Slots

There are seven PCIe (PCI Express) Gen 2 adapter slots standard (per chassis). PCI

Express Gen 2 is the latest high-performance, low-latency, next-generation serial I/O bus.

Slot 7 contains a 10Gb Ethernet Adapter in all models except for the 7145-ARx. Slots 1

through 4 are full-length/full-height. Slots 5-7 are half-length/full-height. Slot 1 is a x16 (“by

16”) slot, both physically and electrically (meaning it operates at the full x16 16GBps

bidirectional speed). Slot 2 is physically x8 but electrically x4 (4GBps). Slots 3-7 are x8

(8GBps) both physically and electrically.

Because the SAS, ServeRAID, dual Gigabit Ethernet, video, and systems management

controllers are all integrated onto the system board, six of the seven adapter slots are

available, which offers you a wide degree of latitude in expansion options.

10 Gigabit Ethernet

Virtual Fabric Adapter

for IBM

Most x3850 X5 and x3950 X5 systems include one dual-port 10Gb Virtual Fabric adapter.

(It is optional for all other models.) The Emulex Virtual Fabric Adapter is an industry-leading

performance and scalability-per-watt, dual-port network adapter for 10Gbps Ethernet

(10GbE) networks. It offers the benefits and flexibility of I/O convergence in a single end-to-

end solution. Protocol offload for stateless TCP/IP and TCP Chimney provide maximum

bandwidth with minimum use of CPU resources. It achieves line rate 10Gbps performance

with support for TCP/IP stateless offloads and TCP Offload Engine (TOE) support. TOE

reduces system processor utilization, providing increased system performance and reducing

overall system power requirements.

The adapter is based on the Emulex OneConnect Universal Converged Network Adapter

(UCNA) platform that also includes the capability for future upgrades to Fibre Channel over

Ethernet (FCoE) and iSCSI protocol offloads. By using a common infrastructure for Ethernet

and storage networks, data centers can reduce capital expense (CapEx) for adapters,

switches and cables, and operational expense (OpEx) for power, cooling and IT

administration.

End-to-end data protection with hardware parity, CRC, ECC and other advanced error

checking and correcting ensure that data is safe from corruption.

Dual 10Gbps Ethernet ports:

• IPv4/IPv6 TCP, UDP checksum offload; Large Send Offload (LSO); Large Receive

Data transfer rates depend on many factors and are often less than the maximum possible.

MTBF of 73GB 2.5-inch 10K RPM HDD for the first 12 months = 305,167. MTBF of solid-state SanDisk SDD SATA 5000 2.5-inch

16GB = 918,298.

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IBM x3950 X5 User's Guide Page 9

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