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

4. Conclusion

This Dell technical white paper describes a method to improve NFS performance using Dell Fluid

Cache for DAS in an HPC environment. It presents measured cluster-level results of several different

I/O patterns to quantify the performance of a tuned NFS solution and measure the performance boost

provided by DFC.

The test results in this paper indicate that DFC is a great fit for environments where:

•

There is heavy read I/O workload, either sequential or random reads.

•

Heavy random write I/O workload with a large number of clients writing to the storage.

•

Lots of clients are performing I/O at the same time.

•

Mixed I/O workload where it is critical to sustain a balance between throughput and IOPs and

an SSD based solution is the best fit.

5. References

1. Dell High-performance Computing NFS Storage Solutions (NSS)

http://www.dell.com/us/enterprise/p/d/hpcc/storage-dell-nss

2. Solid State Drive vs. Hard Disk Drive Price and Performance Study

http://www.dell.com/downloads/global/products/pvaul/en/ssd_vs_hdd_price_and_performance_s

tudy.pdf

3. Dell Fluid Cache for DAS

Dell Fluid Cache for DAS User's Guide at

http://www.dell.com/us/enterprise/p/poweredge-r720/pd

4. NFS tuning and the optimized Dell NFS Storage Solutions (NSS)

Dell™ HPC NFS Storage Solution

Dell HPC NFS Storage Solution High Availability (NSS-HA) Configurations with Dell PowerEdge 12th

Generation Servers

http://i.dell.com/sites/content/business/solutions/engineering-docs/en/Documents/hpc-nfs-

storage-solution.pdf

Optimizing DELL™ PowerVault™ MD1200 Storage Arrays for High Performance Computing (HPC)

Deployments

5. Dell PowerEdge M420 blade

http://www.dell.com/us/enterprise/p/poweredge-m420/pd?~ck=anav

6. XFS bugzilla reference

https://bugzilla.redhat.com/show_bug.cgi?id=813137

7. Dell OpenManage Server Administrator