IBM ESS 5000 SC Series, Hardware Manual

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Figure 4. EMS in ESS 5000 environment
I/O node
The specifications of the I/O node are as follows:
• Processor
– 2x DD2.3 20 Small Cores, 190W/225W, 2.5GHz/2.9GHz
• Memory
– Total 32 DDR4 IS DIMM slots.
– 6 RDIMM per socket: 32 GB (default), 64 GB, 128 GB @ 2400 MHz
– 384 GB, 768 GB, 1.5 TB capacities @ 128 GB/s
– 2 NVDIMM per socket, 16 GB per, @ 2400 MHz. Logtip only
– 32 GB @ 42.6 GB/s interleaved per socket
– 2x SFF HDD capacity 1.8 TB
• Storage
– EJ1F SoFandango 8 SFF backplane
– Mirrored SFF HDD, local boot only
– NVMe not used
– NVLink not used
• PCIe slots
– 5x gen3 X8 HBA: Broadcom 9305-16e fc ESA5
- C2, C6, C7, C8, C12
– 3x gen4 x16 CX5
- C3, C9, C4
– 1x gen3 x4 Austin Ethernet management, C11
– See I/O matrix for full list
Protocol node
The ESS access methods are like the ones for accessing an IBM Spectrum Scale cluster. Depending on
the required configuration, the ESS can be accessed as an IBM Spectrum Scale client, with a specific
connector, or through dedicated protocol node servers. The specifications of the protocol node are as
follows:
• 2x DD2.3 20 Small Cores, 190W/225W, 2.5GHz/2.9GHz
• Default and min 192 GB, no NVDIMMs
• Option for 1x DD3.2 proc with min 128 GB min memory
• 2x SFF HDD capacity 1.8 TB
Chapter 2. System overview 17