8
After the Brew install, install iperf:
brew install iperf
To test upload speed from your client to an Isilon interface, run the following commands from the command line interface of the
Isilon node and client shell respectively:
isilon_node# iperf -s -w 2M -l 1M -N
client_shell# iperf -c <node 10G IP> -w 2M -l 1M -N -t 30
Run the command to test every combination of client network interface and Isilon node/network interface.
To test the download speed from your client to an Isilon interface, run the following commands from the command line interface of
the Isilon node and client shell respectively:
isilon_node# iperf -c <client 10G IP> -w 2M -l 1M -N -t 30
client_shell# iperf -s -w 2M -l 1M -N
Again, ensure that this test is run from every node in the cluster. This test provides a baseline for your potential network throughput
without the added bottlenecks of file sharing protocol overhead and disk input/output.
Expect at least 7-9 GB/s throughput in the results of your iperf tests. Real-world performance is highly dependent upon your
workflow, the Isilon node type, and your client configuration. In Figure 4, we see the results from the Isilon
isi statistics
client
command when comparing a Mac OS 10.11 client and a Windows 8.1 client.
Figure 4. Example Mac OS X and Windows 8 SMB3 performance
In Figure 4, we see the read and write performance results of an Apple Mac Pro equipped with a ThunderLink NS2102 and a Lenovo
D30 equipped with a FastFrame NS12. Both client computers are equipped with 32 GB of RAM and the performance tuning options
detailed in this document. The Isilon OneFS v7.2.1 cluster used in this test is a 3 node X410 cluster with SSD metadata read
acceleration and 64 GB or RAM per node. The read tests are the result of the Mac and Windows client simultaneously playing back a
4K DPX sequence in the BlackMagic Design Davinci Resolve 12 application. The fnprefetch data access pattern detailed in
is applied recursively to the folder containing the DPX sequence. As you can see from the results, the Windows
8.1 client gains a significant performance advantage thanks to SMB3 Multichannel and the ability to balance traffic over dual 10GbE
interfaces.
The write performance results are generated from the simultaneous copy of identical folders containing a mix of large media files to
the Isilon cluster.
CONCLUSION
A network featuring ATTO 10GbE connectivity offers EMC Isilon users:
•
An easily expandable and managed storage solution that can simplify many of today's complicated workflows
•
High-speed 10GbE interconnects for collaborative workflows that include Windows, Linux, and Mac OS X
•
An economical, simple-to-administer 10GbE solution for real-time access to shared volumes
•
High performance and flexibility for scenarios such as remote editing and file access
•
The ability to connect Thunderbolt-enabled laptops and all-in-one platforms to EMC Isilon storage
Media and entertainment workflows require high-performance storage solutions along with the ability to rapidly add new users and
content. A workflow based on open network file-sharing protocols and the effortless scalability of EMC Isilon OneFS allows media and
entertainment professionals to rapidly adapt to changing production requirements, ever-increasing content storage requirements,
and increasingly complicated workflows. EMC and ATTO Technology provide flexible tools based on open protocols that easily adapt
to your needs, while reliably supporting your tight production schedules.
