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Improving NFS Performance on HPC Clusters with Dell Fluid Cache for DAS

Appendix A: Step-by-step configuration of Dell Fluid Cache for

NFS

This appendix provides detailed step-by-step instructions on the configuration of the storage solution

described in this white paper. Readers familiar with

configuration steps to be very similar to the NSS recipe.

Contents

Hardware checklist and cabling .......................................................................... 27

NFS server set up ............................................................................................ 28

NFS server configuration and tuning ..................................................................... 29

Virtual disk configuration .................................................................................. 31

XFS and DFC configuration................................................................................. 33

Useful commands and references ........................................................................ 34

Performance tuning on clients ............................................................................ 34

A.1. Hardware checklist and cabling

The storage solution described in this white paper comprises of an NFS server, direct-attached external

storage, and the Dell Fluid Cache for DAS (DFC) software.

A PowerEdge R720 is used as the NFS server. This solution uses four PowerVault MD1200s as the

attached storage to provide 144TB of raw capacity.

Refer to Table 1, Table 2, Table 3 and Table 4 for the complete hardware and firmware configuration

of the server and the storage. This includes the PCI slot-to-card mapping for the server.

Figure 15 shows the cabling of the PowerVault MD1200s to the PERC H810 adapter on the server.

Dell's NSS line of solutions

will find the