CLARiiON

One of the more interesting discussion points about CLARiiON is the fact that it runs embedded Windows XP inside.  I've had several readers ask me about this, and I've also ...

The qualification of CLARiiON has always included a set of quality software suites that induced just the wrong event to occur at just the wrong time. Originally called the Disk ...

Building the Navisphere architecture from scratch was driven by some of the use cases and requirements listed in my last post, including: the ability to manage a "family" of CLARiiONs, ...

Being a software architect at a big company (EMC) has me thinking about how hard it can be to agree on an architectural direction. All the companies purchased by EMC ...

In the 90s the CLARiiON organization had moved from a text-based management tool (Gridman) to a remote command line interface (CLARCLI) and a remote graphical user interface (ArrayGUIde).  I wrote ...

After I had worked on the CLARiiON RAID algorithms for a few years, I had the itch to move on to something different.  The CLARiiON write cache provided that opportunity. ...

This is my third post in a series of blogs regarding the origins of the CLARiiON Write Cache feature. The development of the write cache algorithms followed a similar path ...

In a previous post I highlighted the need for the CLARiiON product to add a write cache to address the use case of restore from tape.  The slow restore speeds ...

The very first "pre-CLARiiON" version of FLARE (CLARiiON's microcode) supported two RAID levels: RAID-1 and RAID-5.  Due to the "RAID-5 write penalty" it was clear that we needed to provide ...

Happy Cinco De Mayo.  I have to admit that until recently I was unaware of this Mexican holiday and the history behind it. My first introduction to Cinco De Mayo…