NAS Buying Guide


NAS Buying Guide provides comparisons of the feature sets and detailed performance of major NAS and unified storage systems in the market today.  In addition, we provide a detailed discussion of file storage systems features so you can know what to look for in systems your are evaluating.



  • File IO Performance Focused

    We discuss NAS IO performance and rank NAS solutions.

  • NAS System Comparisons

    We compare features and functionality across NAS systems.

  • Advanced NAS Feature Descriptions

    We explain advanced NAS features and their significance.

  • 1 Hour Consultation

    We offer a one hour consultation to discuss your storage questions

Trying to predict NAS performance?

file system benchmark results. We include ChampionsCharts of NFS and SMB (CIFS) file protocols to make it even easier to choose the NAS system with the performance you need.

Reading Data Sheets?

Why get eye strain reading product data sheets when our NAS Buying Guide compares 23 system characteristics and product features for over 61 current NAS systems from all major and most minor NAS system vendors with an easy to read, multi-color/multi-dimensional chart.

Intrepreting NAS Features

We describe all the major and minor features of today’s enterprise, mid-range and SMB class SAN storage systems including advanced features available on only a few NAS systems.

One hour consultation

With every NAS Buying Guide purchase you also get a one hour consultation with a Silverton Consulting data storage analyst to discuss your NAS storage needs.

Similar research costs $4500 or more from other analyst firms…
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Hardcopy and Download


  • Performance Rankings
  • Feature Descriptions
  • Product Comparisons
  • One Hour Consultation
  • Spiral bound printout
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Some Frequently Asked Questions

We offer a full, 30 day money back guarantee. If you’re not completely satisfied, let us know and we will refund your purchase price. For more info see our refund and cancellation policy.
We have been publishing Storage Buying Guides periodically since December of 2005 and quarterly since December of 2011.
Primarily because it’s an objective measure, independently verified by benchmark audits, and able to be understood on multiple dimensions. Some would say that it can be gamed by throwing more hardware at it, such as more disks, SSDs or cache. We would respond yes that’s true, but all vendors can do the same. As such, it’s as level a playing field as one can find today to objectively rank and compare storage systems. Isn’t that what you want from a data storage buying guide?
NAS Buying Guide customers receive a one hour call with SCI data storage analysts to discuss their NAS system needs and requirements. The call must be scheduled within 3 months of purchase. Contact +1-720-221-7270 to make the appointment. All calls take place between 9am-5pm MT. Our analysts will answer questions on your storage buying needs.
All Buying Guides are available on a site-wide license basis. That means all users within a single geographical location may have access to our research.
It is an attempt to distill my 30+ years of storage experience into a single performance chart to identify the best performing storage systems for a given storage protocol or application. For example, the NAS Storage Buying Guide has a ChampionsCharts for both NFS and CIFS/SMB storage protocols which identify the top performers across multiple, orthogonal dimensions of IO performance. The SAN Storage Buying Guide has 10 ChampionsCharts, for OLTP, email and throughput intensive workloads for enterprise, mid-range and SMB class storage and another one for all flash arrays. Our ChampionCharts are only available in our SAN Storage Buying Guide and NAS Storage Buying Guide.
After you purchase any of our Storage Buying Guides, you will immediately be sent a purchase receipt by email with a download link for the Storage Buying Guide PDF. You will also receive a link to an online copy of the purchase receipt so that you can review it later if needed. You will be able to download a copy of the Buying Guide with the link and open-read/copy/print the downloaded PDF without any restrictions. If you also purchased a hard copy of the Storage Buying Guide, you will receive a spiral bound copy of the Storage Buying Guide by general post in a business week or longer, if outside the United States.
  • Review latest IO performance results

    Analysis of the latest storage benchmark results.

  • Storage News

    Evaluation of recent storage and system enhancements.

  • Posts and more

    Ranking of our most popular blog posts and podcasts of the month.

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