IBM Elastic Storage System 3200 User Manual

NVMe transport protocol in IBM Elastic Storage System 3200
The IBM Elastic Storage System 3200 systems use the Non-Volatile Memory express (NVMe) drive
transport protocol.
• NVMe is designed specically for flash technologies. It is a faster and less complicated storage drive
transport protocol than SAS.
• The NVMe-attached drives support multiple queues so that each CPU core can communicate directly
with the drive. This avoids the latency and overhead of core-to-core communication to give the best
performance.
• NVMe offers better performance and lower latencies exclusively for solid-state drives through multiple
I/O queues and other enhancements.
• High-performance IBM Spectrum Scale RAID supports the following RAID code options:
3WayReplication, 4WayReplication, 8+2p, and 8+3p.
• The NVMe transport protocol supports industry standard NVMe flash drives.
Enterprise-level software and support
IBM Elastic Storage System 3200 consists of two I/O server canisters that run the IBM Spectrum Scale
software, which is a part of the IBM Spectrum Storage family. For more information about the IBM
Spectrum Scale capabilities, see IBM Spectrum Scale
.
Enterprise-level software and support are available based on the IBM Spectrum Scale software stack.
System topology
The following gure shows high-level architecture and topology.
2 x
IB EDR/HDR
2 x
100GbE
Midplane
24 PCle4 x2
PCIe4 x16
I/O Canister Node1
8x
8x
GbE
BMC
24 PCle4 x2
PCIe4 x16
I/O Canister Node 2
8x
8x
BMC
2 x
IB EDR/HDR
2 x
100GbE
HCA
IB
Enet
HCA
IB
Enet
HCA
IB
Enet
HCA
IB
Enet
Boot Drv
Boot Drv
Boot Drv
Boot Drv
6 port
1G
Enet
Sw
6 port
1G
Enet
Sw
FPGA
FPGA
USB
DP
Serial
GbE
GbE
USB
DP
Serial
GbE
AMD EPYC AMD EPYC
Figure 5. IBM Elastic Storage System 3200 high-level architecture and topology
EMS node
A POWER9 EMS node (5105-22E) is a management server that is required for each ESS system of one or
more building blocks.
You need a POWER9 EMS node as a part of your ESS system. The POWER9 EMS node is ordered with the
initial building block although you can use an existing customer system. The additional building blocks
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IBM Elastic Storage System 3200: Hardware Planning and Installation Guide

IBM Elastic Storage System 3200 Specifications

General

Brand	IBM
Model	Elastic Storage System 3200
Category	Storage
Language	English