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Restoring from Cloud Storage via CloudArray
I get this question from customers all the time: “What happens if local cache fails?” The short answer is, “Nothing too bad.” (Depending on your perspective, of course…) The longer answer goes like...
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Announcing the immediate availability of CloudArray 1.1
Woohoo! We’ve completed test and development of CloudArray 1.1, which we’ve dubbed the “Extended” release. No, it’s not “Extended” because of the development schedule; it’s taking the core features of...
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Don’t Share Your Cache
Caching is a tricky business. The idea sounds simple: if you’ve used a piece of data recently, keep it around so that you can use it again. But the real world is much more complicated than that, and...
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What does cloud data look like?
a storage sample: We sometimes get the question: “What does my data look like when it’s stored in the cloud?” A complex answer would involve b-trees, log structures, cache algorithms, and tape...
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Clouds, Consistency, and Progress Bars
I have the bad habit of staring at progress bars. I was backing up my Mac laptop to a CloudArray volume.¹ With gigabit ethernet, a full backup to a CloudArray volume takes less time than my local USB...
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Cloud storage: Why the whole is greater than the sum of parts, Part II
Nicos was giving a talk recently, and made a statement along these lines: “With the hybrid data center, the whole is greater than the sum of parts. If your data is stored locally and augmented with...
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The API is not the Cloud
“If we’re not using the APIs, we aren’t using the cloud.” That’s what he said, and that’s what I can convince myself to believe every other Tuesday. (That’s when I like to exercise my...
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Measuring Cloud Storage Performance
There are many excellent reasons to use cloud storage, but fast and efficient transfer of large amounts of data isn’t usually listed as a benefit. That’s one of the reasons why people use cloud storage...
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Measuring Cloud Storage Performance: Blocks vs. Files
What are some good reasons to adopt cloud storage? Cost, durability and flexibility. So let me talk about performance, instead. Look at this graph: As part of our daily testing, we do routine...
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