July 2010

Sysadmin Day is Coming Up! 7 Cool Gift Ideas That Will Make Your Geek Friend Happy

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Every year, on the last Friday of July, Sysadmin Day is celebrated around the world.

You know, the guy (or gal) that makes sure you always receive your emails on time, strips away the spam, cuddles your web server so you can write blog articles, or makes sure the network is always online, so you can read your favorite blogs. Or install new servers and storage so your web experience becomes faster and so your data is never lost.

Sysadmins often have a hard time: Noone calls them to tell them "Thank you for delivering all my emails!" or "Thanks for making sure my data is backed up every day!". Instead, they only get phonecalls when something goes wrong, or worse yet, some anonymous electronic complaint in some soulless ticketing system.

Therefore, this Friday, the 30th of July, 2010, think about your sysadmin, call her up and say something nice, or consider giving them a gift. Here are some geeky gift ideas for sysadmins to celebrate Sysadmin Day 2010, from low-budget to truely-devoted-appreciation pricing order.

After all, you really don't want your sysadmin to turn into a grumpy BOFH, do you?

Solaris ZFS, Synchronous Writes and the ZIL Explained

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When talking to customers, partners and colleagues about Oracle Solaris ZFS performance, one topic almost always seems to pop up: Synchronous writes and the ZIL.

In fact, most ZFS performance problems I see are related to synchronous writes, how they are handled by ZFS through the ZIL and how they impact IOPS load on the pool's disks.

Many people blame the ZIL for bad performance, and they even try to turn it off, but that's not good. Actually, the opposite is true: The ZIL is there to help you.

In this article, we'll learn what synchronous writes are, how they're processed by ZFS, what the ZIL is, how it works, how to measure ZIL activity and how to accelerate synchronous write performance, which is at the root of many, if not the majority of ZFS performance problems.

The ProBlogger 7 Links Challenge #7links

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Darren from ProBlogger today posted his 7 Link Challenge. A fun idea in which he asks bloggers to share 7 links to posts, based on the 7 criteria he selected.

ProBlogger is a great website with lots of useful tips for bloggers. Even if you don't plan to make money with your blog, or if you don't think of yourself as a pro blogger, this site is still one of the best in terms of blogging advice.

I'm currently reading his book "ProBlogger" (affiliate link) and I can highly recommend it to anyone who is thinking more seriously about blogging.

Now, let's get started with the ProBlogger 7 Link Challenge for Constant Thinking: