Frequently Asked Questions About Flash Memory (SSDs) and ZFS

ZFS SSD FAQ Illustration

A few weeks ago, a reader asked me a couple of questions about SSDs and ZFS, hinting that this might be a good topic to write a blog post about.

Sure enough, just last week, a couple of similar questions came up, this time from a customer and a colleague at work.

Well, if that's not a sign from heaven, I don't know what is, so here's a collection of frequently asked questions about flash memory (also known as solid state disks, or SSDs) and ZFS, with answers and some useful links, and an index, too.

My Personal Oracle Solaris Performance Analysis Cheat Sheet


Over time, you tend to learn a Solaris performance trick or two. Or three. Or more. That's cool, it's how stuff works: You learn, you do, you remember.

Performance analysis and tuning is just like that: You learn a trick from a person that is more senior than you are, you apply it, you feel like a hero, you learn the next trick.

But having a bag of tricks is not enough. Because then you start trying out stuff without a system, and spend useless time hunting that problem with a hit-and-miss approach, gut-based only.

Therefore, I'm always glad to listen to Ulrich Gräf when he does one of his famous performance tuning workshops (if you're lucky, you can catch Uli blogging in German here), because he'll give you the full view, the context and the system too, when it comes to performance analysis.

So here's my personal cheat sheet for Oracle Solaris Performance Analysis, including some guideance on how to systematically catch that elusive bottleneck.

Seven Useful OpenSolaris ZFS Home Server Tips

AMD Athlon II X2 240e

A lot of people have read last year's article "A Small and Energy-Efficient OpenSolaris Home Server" (Thanks a lot to Andre Lue from the EON project for linking to it!) and there was quite some discussion on different RAID options as a result of my RAID-Greed article.

So let's continue the theme and have a look at the following home server tips that helped me a lot during my own home server planning, building and installing:

Blogging Platforms - Why I Chose Drupal and Which Useful Resources Helped Me Get Started


When creating this blog, I faced the question of what blogging platform to use: Hosted blogging, Wordpress or one of the many CMS systems out there? Here's a discussion about blogging options and why I chose Drupal as my platform of choice, plus a couple of really useful resources that helped me tailor it to my blogging needs.