Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

NAS Features

Tags:

Introduction

Does Drive Performance Matter in your NAS?

BYOD (Bring Your Own Drive) NASes can help control the cost of your NAS investment and provide a way to put leftover drives to use. But then you're left to answer the question of which drive(s) to choose. For example, is the WD Raptor worth the extra money if you use it in a NAS? Or how should you choose drives with 16 vs. 8 MB of cache? With the huge selection of drives available today, a BYOD NAS buyer is faced with a dizzying array of choices. So I set out to see the effect that hard drive performance has on NAS performance.

The Approach

We used our NAS Performance chart to choose the fastest NASes with gigabit Ethernet in order to not have the hardware limit performance. The Thecus 5200 was an obvious choice, but did not support 3 Gbs SATA drives or Native Command Queuing (NCQ), both of which could potentially provide a performance edge. So after some checking with manufacturers, we settled on the D-Link DNS-323 as a second test platform because it supports both features. Even though both NASes are RAID capable, we decided to keep the test simple by testing single drives.

Thecus N5200 D-Link DNS-323
Thecus 5200 D-Link 323
Figure 2: NAS Test Platforms

Drives were chosen by consulting the Tom's Hardware Hard Drive Charts and StorageReview's Performance Database. We then approached Seagate and Western Digital, explained what we wanted to test and asked for drives with a range of performance levels. Seagate agreed to provide one drive and WD two. A fourth, a Hitachi drive, was just sitting around my office, so I tested it as well. I didn't try more drives because I felt that I could do an initial experiment with just this small set and expand the test if the results merited it. The four drives tested are listed in Table 1 along with their key characteristics.

Drives Size GB RPM Interface Cache
WD1500ADFD "Raptor" 150 10,000 SATA 1.5Gb/s, NCQ 16
WD5000YS 500 7,200 SATA 3Gb/s, NCQ 16
ST3750840AS 750 7,200 SATA 3Gb/s, NCQ 8
HDS722525VLSA80 250 7,200 SATA 1.2Gb/s 8
Table 1: Drives Tested

The test machine was an AMD Athlon 64 3200+ socket 939 processor in a Foxconn 761GXK8MB-KRS motherboard with SIS 761GX and 965 chipsets with 2 GB of RAM (at the suggestion of SNB readers) and a 238 GB SATA drive.

Each drive was installed in each NAS and then tested with the Iozone benchmark program (See how we test for specifics). The iozone machine was running Windows XP Pro with all default updates installed and connected to each NAS via a dedicated gigabit switch (TRENDnet TEG-S50TXE) .

The Iozone 3.263 benchmark was run on the target NAS and drive four times. I ran the benchmark multiple times and averaged the results to smooth out variation in run-to-run results for Iozone.

Jumbo frames were not used because they don't seem to affect performance that much (less than 5% in my experience and often limited to smaller file sizes), and I feel they will rarely be used by home NAS users.

More NAS

Featured Sponsors

Top Ranked Routers

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

I'm trying to replace a Netgear FS108 switch with a Netgear GS108T switch. I didn't need the managed capability at the moment but plan to try and set...
Hi All, Long term Merlin user here. It seems like there are several reports on the forum recently regarding wireless problems with 380.66x across mult...
I'm trying to hack an amazon dash button to control some home automation products. The first step is to run a script on the router to listen for arp r...
Apologies if this has already been asked/answered, I thought I'd read the answer but can't find the thread for the life of me....Was there a way of de...
For those of you who don't like the stock firmware and/or are getting bad buffer bloat scores (I get B-C with streamboost) you can try hnyman's LEDE b...

Don't Miss These

  • 1
  • 2
  • 3