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Western Digital My Cloud DL4100 SMB NAS Review

By: Chris Ramseyer | Network Storage in IT/Datacenter | Posted: Mar 2, 2015 10:10 pm
TweakTown Rating: 89%Manufacturer: Western Digital

Benchmarks - Multi-Client Test


The Intel NAS Performance Tool (NASPT) is an excellent way to determine NAS performance in a single user environment. Any review that only uses NASPT assumes that only a single computer will access the target NAS at one time. We took issue with this method of testing and spent over a year designing, building, programming and finally validating the TweakTown Multi-Client Test.


The test uses Microsoft Office data recorded to traces and played back to the NAS from up to 120 client Windows 7 installations (clients). We record total throughput of all clients and average response time per client.







In the previous tests, we observed a bottleneck with the DL4100 when it comes to small file transfers. In the multi-client test, we use real Microsoft Office files and update them with new data added to the file. This is the most realistic way we've found to test SMB NAS products intended to store files and act as a live server hosting documents. The workload is the same for each client, with each test the number of clients increases until we finally finish with 120 clients working on Office documents at the same time.


It we hadn't already found the low performance issue with Office Productivity in NASPT, I would run the multi-client test over and over again to find out why the DL4100 falls flat in this test. After all, this model was designed specifically for this type of workload. Designed for doesn't actually mean excels at in this case.







The latency test is more telling in this set of charts because it shows how long a user will need to wait before the file opens after the request is made.

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