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Dell Easy Peasy NFS with RHEL6.5 User Guide and Manual

Summary

This technical blog describes the NSS5.5 (NFS Storage Solution version 5.5), a verified and benchmarked NFS solution from Dell HPC Engineering. It details the architecture using a PowerEdge R620 server with Intel Xeon E5-2600 v2 processors, four PowerVault MD1200 storage arrays, Red Hat Enterprise Linux 6.5, and InfiniBand ConnectX-3 interconnects. The document covers configuration details, RAID setup, performance tuning, and best practices for deploying a scalable NFS storage solution. It is intended for HPC administrators, storage engineers, and IT professionals seeking a simple yet scalable NFS deployment.

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Easy Peasy NFS with RHEL6.5 Nirmala Sundararajan, Anthony Fernandez, June 2014

Network File System (NFS) is a central component of data processing. Multiple hardware components and interconnects as well as performance tuning options can make this process a complex one. Often times this can result in component mismatch or unsupported configurations. So were you looking for a solution that is simple yet scalable?

This blog describes a solution that we verified and benchmarked in the Dell HPC Engineering lab. It’s called NSS5.5 (NFS Storage Solution, version 5.5) and aims to offer more than simplicity and scalability. Described below are the configuration and performance plus information on a step-by-step guide on best practices and how to set up such a solution. Read on for details!

For those of you familiar with our NSS-HA solutions, NSS is the non-HA version .The NSS5.5 solution includes one NFS server direct attached to standard SAS JBOD arrays. In the current 5.5 version, the NFS server is a Power Edge R620 server with Ivy Bridge based processors (Intel Xeon E5-2600 v2 series) and the NSS storage comprises of four direct attached Power Vault MD1200 storage arrays. The NSS5.5 uses Red Hat Enterprise Linux 6.5 as the operating system on the NFS server, Infini Band Connect X-3 as the I/O network between the NFS server and the compute clients, and Mellanox OFED 2.1.1.0.6.

Figure 1 shows the NSS architecture as well as the high level file system layout.

Page Summary Contents For Dell Easy Peasy NFS with RHEL6.5 User Guide and Manual

Page 1 Easy Peasy NFS with RHEL6.5 Nirmala Sundararajan, Anthony Fernandez, June 2014 Network File System (NFS) is a central component of data processing. Multiple hardware components and interconnects as we...
Page 2 Figure 1 Architecture Diagram 3TB HDD LV Stripped across 3TB HDD RAID60, 10+2 span RAID60 volumes RAID60, 10+2 span 512K Segment Size XFS Format 512K Segment Size The NFS server uses two PERC H810 RAI...
Page 3 The total I/O was kept constant at 256 GB. That is, for the 1 thread/1 client case, a single client read/wrote one 256 GB file; with 2 clients each client read/wrote a 128 GB file size and so on. 256 ...
Page 4 As you can see from the graph a single NFS server can provide peak throughput of 2,671 Mi B/s for sequential writes and 2,818 Mi B/s for sequential reads. The results of the random reads and writes ar...
Page 5 Figure 4 Random Write Test Result NFS IPo IB random write I/O performance Number of concurrent clients A peak close to 100,000 IOPS was achieved on random writes. With 64 simultaneous clients, the pea...
Page 6 1gb E Ethernet card (Daughter (1) Intel Gigabit Ethernet Quad Port I350-t Network card slot) Daughter Card External storage controller (2) PERC H810 RAID Controllers (Slot 2, 3) Systems Management i D...
Page 7 NSS5.5 - Client / HPC Compute Cluster Client / HPC Compute Cluster 64 Power Edge M420 blade servers Clients 32 blades in each of two Power Edge M1000e chassis Red Hat Enterprise Linux 6.4 x86-64 Two P...