Monday, September 09, 2013

Uptime Report for My Live Windows Azure Web Site: August 2013 = 99.71%

My Android MiniPCs and TVBoxes blog runs WordPress on WebMatrix with Super Cache in Windows Azure Web Site (WAWS) Shared (Preview) tier in Microsoft’s West U.S. (Bay Area) data center and ClearDB’s MySQL database (Venus plan). Service Level Agreements aren’t applicable to the Web Services’ Shared tier; only sites in the Standard tier qualify for the 99.9% uptime SLA.

  • Running a Shared Preview WAWS costs ~US$10/month plus MySQL charges
  • Running a Standard tier instance would cost ~US$75/month plus MySQL charges

I use Windows Live Writer to author posts that provide technical details of low-cost MiniPCs with HDMI outputs running Android JellyBean 4.1+, as well as Google’s new Chromecast device. The site emphases high-definition 1080p video recording and rendition.


The site commenced operation on 4/25/2013. To improve response time, I implemented WordPress Super Cache on May 15, 2013. I moved the sites diagnostic logs from the file system to Windows Azure blobs on 9/7/2013, as reported in my Storing the Android MiniPCs Site’s Log Files in Windows Azure Blobs post.

Here’s Pingdom’s summary report for August 2013:


Pingdom’s graphical Uptime report (first page in Downtime mode) for August 2013:


Note: Downtime is exaggerated because Pindom’s timing resolution is five minutes.

And here’s their Response Time report for the same period:


The Windows Azure Management Portal displays resource utilization for a maximum period of one prior week:


The 5,369 maximum requests per hour on 9/8/2013 is a bit above prior August 2013 weeks.

I plan to report and log uptime values monthly with pages similar to OakLeaf Systems’ Uptime Report for my Live OakLeaf Systems Azure Table Services Sample Project posts, which has more that two full years of uptime and response time data as of June 2013.

Month Year Uptime Downtime Outages Response Time
August 2013 99.71% 02:10:00 24 1,786 ms
July 2013 99.37% 04:40:00 45 2,002 ms
June 2013 99.34% 04:45:00 30 2,431 ms
May 2013 99.58% 03:05:00 32 2,706 ms

Note: The usual 99.9% uptime Service Level Agreement (SLA) applies only to Windows Azure Web Sites running in the Standard tier.


DM said...

Yikes. That is not great.

It looks like your site is loading a lot of images. Can you offload that to blob storage or a CDN? I'm not sure if that would help with your uptime or response time.

I've been running checks this week and I'm averaging about 460-470ms average response time.

Michael Washington said...

Your site is running fast.

Roger Jennings (--rj) said...


Glad to hear that. Thanks for the report.