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Dell - Internal Use - Confidential

By Xin Chen

The latest Dell NSS-HA solution was published on September 2013, of which the version is NSS5-HA. This

release leverages Intel Ivy Bridge processors and RHEL 6.4 to offer higher overall system performance

than previous NSS-HA solutions (NSS2-HA, NSS3-HA, and NSS4-HA, and, NSS4.5-HA).

Figure 1 shows the design of NSS5-HA configurations. The major differences between NSS4.5-HA and

NSS5-HA configurations are:

 Processors:

o NSS4.5-HA: E5-2680@2.7GHz, 8 cores per processor, (SandyBridge processors)

o NSS5-HA: E5-2695@2.4GHz, 12 cores per processor, (IvyBridge processors)

 Memory:

o NSS4.5-HA: 8 x 8GiB, 1600MHz, RDIMMs

o NSS5-HA: 8 x 8 GiB, 1866MHz, RDIMMs

 OS:

o NSS4.5-HA: RHEL6.3

o NSS5-HA: RHEL6.4

Except for those items and necessary software and firmware updates, NSS4.5-HA and NSS5-HA share

the same HA cluster configuration and storage configuration. (Refer to NSS4.5-HA white paper for the

detailed information about the two configurations.)

Dell HPC NFS Storage Solution - High Availability Solution

NSS5-HA configurations

Summary of content (7 pages)

PAGE 1
Dell HPC NFS Storage Solution - High Availabil NSS5-HA configurations By Xin Chen The latest Dell NSS-HA solution was published on September 2013, of which the version is NSS5-HA. This release leverages Intel Ivy Bridge processors and RHEL 6.4 to offer higher overall system performance than previous NSS-HA solutions (NSS2-HA, NSS3-HA, and NSS4-HA, and, NSS4.5-HA). Figure 1 shows the design of NSS5-HA configurations. The major differences between NSS4.
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Dell HPC NFS Storage Solution High Availability Configurations with Large Capacities NSS5-HA 360TB architecture Public network (IB or 10GbE) Clients Clients Private network R620 R620 1 RBOD + 1 EBOD PDU PDU NSS5-HA 360TB configuration Public network Private network Power Storage connections Although Dell NSS-HA solutions have received many hardware and software upgrades to support higher availability, higher performance, and larger storage capacity since the first NSS-HA release, the architectural d
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Dell HPC NFS Storage Solution High Availability Configurations with Large Capacities Presented here are the results of the I/O performance tests for the current NSS-HA solution. All performance tests were conducted in a failure-free scenario to measure the maximum capability of the solution. The tests focused on three types of I/O patterns: large sequential reads and writes, small random reads and writes, and three metadata operations (file create, stat, and remove).
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Dell HPC NFS Storage Solution High Availability Configurations with Large Capacities IPoIB large sequential read performance Throughput in MB/s NFS IPoIB large sequential I/O performance: Read 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 1 2 4 8 16 32 48 64 Number of concurrent clients NSS5-HA NSS4.5-HA IPoIB random writes and reads Figure 4 and Figure 5 show the random write and read performance.
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Dell HPC NFS Storage Solution High Availability Configurations with Large Capacities IPoIB random write performance NFS IPoIB random I/O performance: Write 6000.00 5000.00 IOPS 4000.00 3000.00 2000.00 1000.00 0.00 1 2 4 8 16 32 48 64 Number of concurrent clients NSS5-HA NSS4.5-HA IPoIB random read performance NFS IPoIB random I/O performance: Read 12000.00 10000.00 IOPS 8000.00 6000.00 4000.00 2000.00 0.
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Dell HPC NFS Storage Solution High Availability Configurations with Large Capacities Figure 6, Figure 7, and Figure 8 show the results of file create, stat, and remove operations, respectively. As the HPC compute cluster has 64 compute nodes, in the graphs below, each client executed a maximum of one thread for client counts up to 64. For client counts of 128, 256, and 512, each client executed 2, 3, or 4 simultaneous operations. From the three figures, both NSS5-HA and NSS4.
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Dell HPC NFS Storage Solution High Availability Configurations with Large Capacities IPoIB file stat performance Number of stat () operations per second File stat 300000 250000 200000 150000 100000 50000 0 1 2 4 8 16 32 48 64 128 256 512 Number of concurrent clients NSS5-HA NSS4.