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The Cloud Storage Wars: Windows Azure vs. Google

So much happened in January 2010 for the cloud storage world

Azure Sessions at Cloud Expo

So much happened in January 2010 for the cloud storage world.

First was the Windows Azure Platform went from public preview to full production. Second was Google Docs opened up  for any file type upload/download, effectively making it a GDrive in the cloud.

How would these affect you? This article will compare the two cloud storage offerings from price, speed, usability, service level agreement and to developer support.

1. Price

Google’s storage cost = 25c / Gigabyte / year = 2c / Gigabyte / month. There is no additional transfer cost.

image

Windows Azure’s storage cost is at 15c / Gigabyte / month. There is additional cost for transfer data in and out.

image

Note: Google storage is clearly cheaper, about 10 times cheaper.

2. Speed

We will use Gladinet Cloud Desktop to map both in a virtual drive in Windows Explorer and compare the time it takes to complete a drag & drop upload task of each.

image

File Size: 9.3M

Azure Storage Upload: 43 seconds => 216 Kbytes/s

Google Docs Upload: 68 seconds => 136 Kbytes/s

Azure Storage is faster to upload. However, the 136 Kbytes/s is very decent upload speed too. The speed could also vary depending on whether you are close to a Google data center or a Microsoft Azure data center or which one is busier or less.

3. Usability & Tools

Google Storage is shared between Gmail, Picasa Web Albums and Google Docs,  all of which have web interfaces to use and share with friends. For the desktop PC UI interface, you have client side GUI tools such as Google Picasa,  Gladinet Cloud Desktop or Memeo Connect to connect your Google Storage account directly into your Desktop PC.

Azure on the other hand, is more geared toward developers. You won’t be able to use Azure Storage until you write some code. You can use some 3rd parties’ tools to use Azure Storage, such as Azure Storage Explorer, Cloud Storage Studio, Azure MMC plug-in,  Gladinet and others.

Google Storage is more usable out of the box. However, Azure storage may have more tools available down the road.

Note: This may not be an apple-to-apple comparison in this aspect between Google Storage and Azure Storage. A better comparison may be between Google Storage and Windows Live SkyDrive when both have web interface.

4. Service Level Agreement

Google’s SLA is different for free user, Google Apps user and Google Apps Premier Edition user. Below is a glimpse of what is offered for the premier account users, which may not be applied to free users.

Google Apps SLA.

“During the Term of the applicable Google Apps Agreement, the Google Apps Covered Services web interface will be operational and available to Customer at least 99.9% of the time in any calendar month (the "Google Apps SLA").”

Windows Azure SLA is more straight forward and applies to everyone. As quoted below:

Windows Azure SLA
”For storage, we guarantee that at least 99.9% of the time we will successfully process correctly formatted requests that we receive to add, update, read and delete data. We also guarantee that your storage accounts will have connectivity to our Internet gateway.”

5. Developer Support

Google offers Google DATA Protocol for developers. Windows Azure offers Azure SDKs which integrates directly into Visual Studio.

It is much easier to program towards Windows Azure Storage with Visual Studio so you may see more tools and internet products built on top of Windows Azure further down the road.

However, if you are using PHP, Ruby or anything other than .NET, Azure SDK may not have  a big advantage over Google APIs.

6. Which One is for You?

Since each one has advantage and disadvantage in different categories, you need to know the type of use case that fits before you select and settle on one of them.

Use case 1 – casual cloud storage user, home use,  with < 25G in need.

You can use Google Storage, with all the web tools and desktop tools available.

Note: In this case, consider Windows Live SkyDrive too, but not Azure Storage.

Use case 2 – serious cloud storage user, home use, with > 25G in need.

You can use Google Storage, with all the tools + the very low storage cost.

Note: In this case, SkyDrive tops out at 25G capacity and Azure is too expensive compared to Google Storage.

Use case 3 – serious business user

If you are concerned about Service Level Agreement, you will have to be a Google Apps Premier User or Azure user. For the Premier account, there is additional cost of $50 per user per year.

You will need to calculate the cost, factoring in the Google Apps Premier cost and compare that with the cost of using Azure Platform.

Use case 4 – Internet developer, need cloud storage support

You can re-brand Azure storage and build your Internet Application on top of Azure Storage because it was built for developers. However, if your Internet app can’t beat Google’s functionality or fill a niche that wasn’t already covered by GMail, Picasa, Docs and other established Internet apps, it may be difficult to pass the cost from Azure to your customers.

7. Conclusion

You can pick the one that fits your use case the best. If you are uncertain which one is good for you, you can use both. There are tools out there such as Gladinet that supports both.

We only saw the first month of 2010 in the development of cloud storage. What is next beyond Azure Storage and GDrive in 2010?

More Stories By Jerry Huang

Jerry Huang, an engineer and entrepreneur, founded Gladinet with his close friends and is pursuing interests in the cloud computing. He has published articles on the company blog as well as following up on the company twitter activities. He graduated from the University of Michigan in 1998 and has lived in West Palm Beach, Florida since.

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