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Tag Archives: CMDA

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Being Smart in Making the Cloud “Smart”

We upload our pictures to share with the world, edit documents in the cloud, and back up important files that we can access from multiple devices. Our increasing need for cloud storage is driving cloud providers to constantly seek better technology. This post is about “smart cloud” technology,…

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How do I Measure the Workload on my Drives?

In my previous posts on hard drive performance modeling and performance acceleration with hybrid drives, I discussed how the workload seen by the drive impacts performance. In most cases, measurements will provide the most accurate characterization of the drive-level workload. In this post, I’ll…

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What is the best way to predict system-level performance accurately and cost-efficiently?

System-level performance is one of the most important metrics that IT architects consider when they consider capacity expansions. There are several approaches available to estimate whether a storage system will provide acceptable performance to the user. Modeling system performance requires…

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How To Optimize Datacenter Performance with Numerical Models

The primary purpose of the modern datacenter is to contain clusters of computer systems running cloud services. Most cloud services are focused on the storage and retrieval of data objects such as web pages, photos, or movies. These data objects span the range of sizes from one kilobyte text files…

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Why model cloud system reliability?

How often have you seen services such as your online e-mail account, online streaming video, or online social profile page hanging on you? Likely, you have experienced at least one situation where you were not able to navigate smoothly through these services. Or even worse, you lost data stored in…

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How Does My Workload Affect Hybrid Drive Performance?

Hybrid drives can accelerate performance by storing frequently accessed data in flash memory, where it can be accessed very quickly. How much performance can be gained by replacing a hard disk drive with a hybrid drive? The answer depends on the workload. In this post, we’ll talk about the…

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Why do I need Data Center Monitoring?

My purpose with this blog post is to convince you that data center (DC) monitoring matters to you and, in particular if you’re an IT professional, to provide you with the key requirements for a DC monitoring tool or suite. I realize that you may be visiting this blog for any number of reasons:…

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When is RAID Not Enough?

Many considerations go into the design of a data storage system. One of the most important features of any storage solution is to ensure data durability, minimizing the likelihood of data loss. We’ll leverage several data durability models to evaluate the scale at which RAID based storage…

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How Should I Model Hard Drive Performance in the Cloud?

Estimating hard drive performance in cloud applications is a complex task, and accurate estimates often require a detailed understanding of the workload at the drive. In this post, I’ll present a few things to consider when looking at hard drive performance, as well as some common pitfalls. For a…

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Cloud Data Centers of the Future – Part 2

Welcome back, this post is part two in a series of two posts about data centers of the future. Click here to read part 1. Location, location, location.  Like in real estate, building your mega data center at the right spot will become more and more important.  Data centers will be built in cooler…

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