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The 80/20 rule...  for storage systems.

The 80/20 rule… for storage systems.

The 80/20 rule is often attributed to an Italian economist named Vilfredo Pareto. Born in 1848, Pareto was (inspirationally at least) one of the early members of the occupy movement: he observed that 80% of Italy’s wealth at that time…

29,107 total views, 158 views today

Site to Site Replication: How It Works

Site to Site Replication: How It Works

We recently added a big feature to our storage system: site to site replication. An earlier post gave an overview of the feature, SiteProtect — what it’s for, why it’s important, and how it’s used. This post is a followup…

1,298 total views, 5 views today

Same old thinking equals same results

6 Words to Kill Your IT Career With: “That’s How We’ve Always Done It!”

Like many folks in IT, when I first started out in this business, I was on the help desk. It was back then that I learned the fundamental rule of surviving in this profession: What makes you money today will…

2,738 total views, 2 views today

Site to Site Replication for storage

Getting More from Scale-out Storage: Site to Site Replication

Here at Coho, our primary focus is on protecting your data  and keeping it available in the face of the unexpected.  We protect data from local failures such as hardware outages, media corruption, network and node loss — just to mention…

2,332 total views, 2 views today

Why your old SAN doesn't scale

Why your old SAN doesn’t scale

This post also appeared as an article in InfoWorld. The speed of flash storage devices has changed how applications should access data and heralded the end of old storage Thanks to virtualization, the efficiency and flexibility of the server side…

1,636 total views, 2 views today

A Web Scale Case Study: Facebook as a File System

A Web Scale Case Study: Facebook as a File System

This week at OSDI (the research conference on Operating System Design and Implementation), Facebook presented the latest in a series of papers that they have written over recent years that document the evolution of their storage system. Given the enormous…

5,293 total views, 12 views today

Engineering for Change

Engineering for Change

There’s this Spoon song that I really like, called “The Underdog.”  It’s a simple, catchy tune, and, to my listening at least, it talks about the challenges of a small independent band struggling with the realities of working with the…

2,810 total views, 2 views today

How to Build the Ideal Storage Solution, Part 3: “Bring Me Your Applications!”

How to Build the Ideal Storage Solution, Part 3: “Bring Me Your Applications!”

In the first part of this series I focused on the hardware used in Coho Data storage solution, and in the second part I described how Coho Data’s software distributed your data across that hardware to provide both performance and data…

4,178 total views, 56 views today

Architecting Large Virtualization Environments Using Web-Scale Storage

Architecting Large Virtualization Environments Using Web-Scale Storage

When virtualization first came on the scene earlier this millennium, projects were generally limited to non-strategic server consolidation efforts and ancillary services. Mission critical services remained firmly in the physical world. Over the next few years, though, as the hypervisor…

1,459 total views, 3 views today