Administrator Guide

BeeGFS High Capacity Storage solution architecture
11 Dell EMC Ready Solutions for HPC BeeGFS High Capacity Storage | ID 424
3.4 Storage servers
Each SS in the SS pair is equipped with four dual-port 12 Gb/s SAS host bus adapters and one Mellanox
InfiniBand HDR100 adapter to handle storage requests. Figure 5 shows the recommended slot assignments
for the SAS HBAs as slots 1, 2, 4 a and 5. This allows the SAS HBAs to be evenly distributed across the two
processors for load balancing. The Mellanox InfiniBand HDR100 HCA is installed in slot 8, which is a PCIe
x16 slot.
SS slot priorities and ME4084 SAS ports
Note: To clearly display the SAS ports, Figure 5 shows one ME4084. This configuration has 4 x ME4084
arrays, as shown in Figure 2.
With four dual-port 12 Gb/s SAS controllers in each PowerEdge R740, the two servers are redundantly
connected to each of the four PowerVault ME4084 high-density storage arrays, with a choice of 4 TB, 8 TB,
12 TB or 16 TB of NL SAS 7.2 K RPM hard disk drives (HDDs). Refer to Appendix A Storage array cabling
for details on the storage cabling for the various base configurations of the solution.