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Tales of ext3: lost in space

This week I explained a few colleagues how to expand logical volumes and ext3 filesystems. Nothing special, you would say. This is pretty straightforward in Linux, do a lvresize and resize2fs and that’s about it. I was surprised when one … Continue reading

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AIX getcwd() weirdness

When I came into the office my colleague immediately confronted me with a weird issue. It seems all of our applications stopped working due to an issue with a NFS server. Almost all commands and utilities hang and spawned NFS … Continue reading

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Fun with DTrace in destructive mode

Most people use DTrace to see what their system is actually doing. What functions or systemcalls are being executed, what is my process doing, where is most time spent, etc. The possibilities are endless and DTrace is such an awesome … Continue reading

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