Our VMware local SE team has got a great Christmas present from regional Intel BU. Four rack servers with very nice technical specifications and the latest Intel Optane technology.
Here is the server technical spec:
Intel Platinum 8280L (28 cores, max memory 4.5TB)
768GB DDR4 DRAM RDIMM
12 x 64GB
Intel Persistent Memory
3TB Intel Persistent Memory
12 x 256GB
Intel Optane SSD DC P4800X Series
(750GB, 2.5in PCIe* x4, 3D XPoint™)
Intel SSD DC P4510 Series
(4.0TB, 2.5in PCIe* 3.1 x4, 3D2, TLC)
Intel® Ethernet Network Adapter XXV710-DA2
(25G, 2 ports)
These servers are vSAN Ready and the local VMware team is planning to use them for demonstration purposes of VMware SDDC (vSphere, vSAN, NSX, vRealize), therefore VMware Cloud Foundation (VCF) is a very logical choice.
Anyway, even Software-Defined Data Center requires power and cooling, so I've been asked to help with server rack design with proper power capacity planning. To be honest, the server rack plan and design is not rocket science. It is just simple math & elementary physics, however, you have to know the power consumption of each computer component. I did some research and here is the math exercise with a power consumption of each component:
- CPU - 2x CPU Intel Platinum 8280L (110 W Idle, 150 W Computational, 360 W Peak load)
- Estimation: 2x150 W = 300 W
- RAM - 12x 64 GB DDR4 DRAM RDIMM (768 GB)
- Estimation: 12x 24 Watt = 288 W
- Persistent RAM - 12x 256GB (3TB) Intel Persistent Memory
- Estimation: 12x 15 Watt = 180 W
- vSAN Caching Tier - 2x Intel Optane SSD DC P4800X 750GB
- Estimation: 2x18W => 36W
- vSAN Capacity Tier - 4x Intel SSD DC P4510 Series 4TB
- Estimation: 4x 16W => 64 W
- NIC - 1x Intel® Ethernet Network Adapter XXV710-DA2 (25G, 2 ports)
- Estimation: 15 W
If we sum the power consumption above, we will get 883 Watt per single server.
To validate the estimation above, I used the DellEMC Enterprise Infrastructure Planning Tool available at http://dell-ui-eipt.azurewebsites.net/#/, where you can place infrastructure devices and get the Power and Heating calculations. You can see the IDLE and COMPUTATIONAL consumptions below.
1 kW per server is a pretty decent consumption. When you design your cool SDDC, do not forget for basics - Power and Cooling.