Let loose your Chaos Monkey

Is all of the redundancy you build into your infrastructure really worth the trouble if you aren't willing to test it in production?

By Matt Prigge, InfoWorld |  Data Center, insider

No matter the size of your IT infrastructure, you've built in some form of redundancy, whether it's as simple as RAID in direct-attached storage on your servers or as complex as multiple, cascaded, geographically separated hot sites.

In the past, I've strongly advocated setting aside a portion of planned downtime windows to test that redundancy -- which just about everyone can and should do. But how would you feel about testing that redundancy smack dab in the middle of a production day? When was the last time you yanked a disk out of a RAID set or unplugged a redundant network link just to see what would happen?

If the answer is never -- why? After all, you've invested the capital in providing the redundancy. What does it say about that investment if you're unwilling to test it when it matters most?

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