IBM Power 8 (E850)

The following is a summary of Power E850 features:

• The Power E850 server supports 16 to 48 processor cores with two to four POWER8 processor modules:
  • 8-core 3.72 GHz Processor Module (#EPV2)
  • 10-core 3.35 GHz Processor Module (#EPV6)
  • 12-core 3.02 GHz Processor Module (#EPV4)
• 128 GB to 4 TB high-performance DDR3 memory with L4 cache:
  • 16 GB CDIMM Memory (#EM86)
  • 32 GB CDIMM Memory (#EM87)
  • 64 GB CDIMM Memory (#EM88)
  • 128GB CDIMM Memory (#EM8S)
  • Optional Active Memory Expansion (#4798)
• Choice of three storage backplane features with different integrated SAS RAID controller options. All backplane options have eight SFF-3 SAS bays, four 1.8-inch SSD bays and one DVD bay. All backplane options offer Easy Tier function for mixed HDD/SSD arrays.
  • Dual SAS Controller Backplane, with 7.2 GB write cache (#EPVN)
  • Dual SAS Controller Backplane, without write cache (#EPVP)
  • Split Disk Backplane (two single SAS controllers), without write cache (#EPVQ)
• Up to 11 hot-swap PCIe Gen3 slots in the system unit:
  • Three adapter slots - x8 Gen3 full height, half length.
  • Four, six, or eight x16 Gen3 full-height, half-length adapter slots.
  • With two processor modules, there are seven PCIe slots; with three modules, there are nine PCIe slots; and with four modules, there are 11 PCIe slots in the system unit.
  • One x8 PCIe slot is used for a LAN adapter.
• The PCIe Gen3 I/O Expansion Drawer (#EMX0) expands the number of full-high, hot-swap Gen3 slots:
  • Up to two PCIe3 drawers with two processor modules (maximum 27 slots on the server)
  • Up to three PCIe3 drawers with three processor modules (maximum 39 slots on the server)
  • Up to four PCIe3 drawers with four processor modules (maximum 51 slots on the server)
• Up to 64 EXP24S SFF Gen2-bay Drawers (#5887) can be attached, providing up to 1,536 SAS bays for disk or SSD.
• System unit I/O (integrated I/O)
  • USB ports: four 3.0 (two front/two rear) for general use and 2.0 (rear) for limited use
  • HMC ports: two 1 GbE RJ45
  • System (serial) port: one RJ45
• Hot-plug, redundant power supplies, either ac or dc
  • 4 - AC Power Supply 1400W (200-240 V) (#EN2M)

The E850 has been designed and built to provide strong reliability, availability, and serviceability characteristics. These include POWER8 chip capabilities, memory protection, multiple SAS storage protection options, hot-plug SAS bays, hot-plug PCIe slots, redundant and hot-plug power supplies and cooling fans, and even highly resilient architecture for power regulators.

• Other features:
  • Second-generation service processor
  • Hot-plug SAS bays and PCIe slots
  • Redundant and hot-plug power supplies and fans
  • Optional Active Memory Mirroring for Hypervisor (#EM81)
  • Highly resilient power regulator architecture
• System unit only 4U in a 19-inch rack-mount hardware
• Primary operating systems:
  • AIX (#2146) (small tier licensing)
  • Linux (#2147): RHEL, SLES, and Ubuntu