September 2009 archive

No SAN is an island…

Ok, that was too cutsey for such a classy establishment. When you’re building a SAN, everything should play together, in the same SAN box if you will (with my apologies to QLogic.) When you start putting in multiple stand-alone SAN islands you increase your maintenance overhead exponentially.  You also prevent the very thing that make …

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Backup Vs. Archive

The fundamental difference between BACKUP and ARCHIVE. A backup is there to help you deal with a crisis such as “My datacenter is a smoking hole in the ground now what do I do?” or something not quite as dramatic like “A virus ate my data.”  You recover from the backup to the last known …

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I’ve got the power….

But apparently the brain-trust that runs the facilities for my customer doesn’t. If you’ve ever seen a datacenter go completely black, it’s a scary thought. If you’ve ever seen someone actually manage to take out the power to *JUST* the servers (leaving the lights and AC functional) Well that’s just a work of art… That …

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