Dell POWEREDGE R720XD - Manual (Page 8)

Improving NFS Performance on HPC Clusters with Dell Fluid Cache for DAS
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NFS server Figure 2.
NFS server and storage hardware configuration Table 1.
Server configuration
NFS SERVER PowerEdge R720
PROCESSORS Dual Intel(R) Xeon(R) CPU E5-2680 @ 2.70 GHz
MEMORY 128 GB. 16 * 8 GB 1600MT/s RDIMMs
INTERNAL DISKS
5 * 300 GB 15 K SAS disks
Two drives configured in RAID-0 for the operating system
with one additional drive as a hot spare
Two drives configured in RAID-1 for swap space
INTERNAL RAID CONTROLLER PERC H710P mini (internal)
EXTERNAL RAID CONTROLLER PERC H810 adapter (slot 7) connected to the storage
enclosures
INTERCONNECT TO CLIENTS Mellanox ConnectX-3 FDR card (slot 5)
Storage configuration
Storage Enclosure Four PowerVault MD1200 arrays, daisy chained
Hard Disks 12 * 3 TB 7200 rpm NL SAS drives per storage enclosure