IBM ESS 3000 Hardware Planning And Installation Manual page 30

• 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
ESS 3000 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 on the IBM Spectrum Scale capabilities, see
IBM Spectrum Scale.
Enterprise level software and support is available based on the IBM Spectrum Scale software stack.
System hardware
An ESS 3000 enclosure contains NVMe flash drives and a pair of server canisters.
System topology
Figure 5 on page 18 shows hardware high-level architecture and topology.
I/O Server Canister 1
Figure 5. ESS 3000 High-level architecture and topology
EMS node
An EMS node is a management server that is required for each ESS system of one or more building blocks.
You need an EMS node as a part of your ESS system. The EMS node is ordered with the initial building
block although you can use an existing customer system. The additional building blocks that are added to
an existing building block do not require an additional EMS node. A single EMS node can support multiple
building blocks in the same IBM ESS 3000 cluster.
You need a minimum of one EMS node (5148-21L) as a part of your ESS cluster. The EMS node can be
ordered as a part of ESS 3000. When ESS 3000 is added to an existing ESS cluster that has a 5148-21L
EMS node, the same EMS node can also be used to manage ESS 3000. In such a configuration, the
existing EMS node must be upgraded to ESS 5.3.5 or later versions before an ESS 3000 building block can
be added. For a new ESS 3000 customer, the EMS node is shipped with an already installed ESS 5.3.5. An
18 IBM Elastic Storage System 3000: Hardware Planning and Installation Guide
ESS 3000 Hardware High Level Architecture and Topology
12 PCIe3 x2
12 PCIe3 x2
Drive Mid Plane
I/O Server Canister 1
12 PCIe3 x2
12 PCIe3 x2