Rebooting IT

My old server machines are too noisy – which is an undeniable fact and the reason for consolidating machines. It was a decision which didn’t make me happy, but logic told me to do so and offered a new challenge to me. The main problem was separating services in a way they don’t bite each other. My solution […]

Check XFS fragmentation

Using XFS means, that you have to deal with fragmentation of your files. Disregarding fragmentation, XFS is a wonderful filesystem which never caused any problems here. To check fragmentation, we use the xfs-debug tool in read-only mode: xfs_db -c frag -r /dev/sdX# At my server it would look like that: stargazer ~ # xfs_db -c frag -r /dev/sda7 […]

Bad RAM

I guess there are many ways to drive a sysadmin crazy – I even experienced a few by now; But the most effective one of all seems to be bad memory. Let me tell you: Nowadays most systems that I get to look at are Windows boxes which are acting weird in a not really reproducible way.

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