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As reported around the web, it looks like several people have noticed performance issues with Amazons EC2 cloud computing service. While this was to be expected, some people are surprised nonetheless. For those that are surprised: please read “the truth about overselling“. It’s about web hosting, but much of the contents are true for cloud computing as well. Cloudkick has nice graphs showing the latency to their EC2 instances:
Guy Rosen did an interesting analysis of the number of virtual machines started in Amazon’s cloud. His findings were surprising, at least to me: according to his stats, nearly 50.000 EC2 instances are started daily. But it all depends on the way you look at it; it’s less than one new VM per second. And since I know of a number of companies using EC2 instances to deal with peaks in demand, many of these will be running only a short period of time. But today I was looking at these numbers in another way: the huge amounts of storage for these VMs. The smallest EC2 instance has 160GB of local disk storage. That means nearly 8 petabytes of storage is provisioned each day in Amazon’s cloud; and possibly more. The 160GB is for a 32-bit system; users wanting a 64-bit machine start at either 350 or 850GB of storage, so the total amount of disk provisioned just for the EC2 machines is probably over 10 petabytes per day.  Petabox unit at the Internet Archive - by gruntzooki Photo by gruntzooki Continue reading Amazon provisioning 8 petabytes of storage per day A short review of two utilities for making backups to Amazon’s S3 cloud storage, Jungle Disk and CloudBerry Online Backup. It turns out there are some surprising differences between the two products. [...] George Crump just blogged about the reliability of cloud storage; as he points out, anything you store “in the cloud” will go down or be unreachable at one time or another. I personally think most companies storing data with cloud storage providers such as Amazon’s S3 or Rackspace’s Cloud Files realize this might happen, and plan accordingly; but still the “Hybrid Cloud Storage” solution proposed by Crump might be worth investigating: Continue reading Are there any real advantages to cloud storage? CloudBerry, known mostly for their S3 explorer for easily browsing files stored on Amazon’s S3 cloud storage, is making a beta version of their new backup utility available for testing.
Amazon has finally shared some details about the “Export” side of their AWS Import/Export feature. This means that you can now send a storage device to Amazon’s Seattle mailroom, and they’ll ship it back to you with data of your choosing. In other words, it works the same way as their Import service. And, for those who haven’t been able to take part in the earlier beta testing, the good news is that the beta is now open for everyone.
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