I worry a lot about those things. I am sending this to my colleagues. It's too easy to set up new sysop tools on the shiny new cluster/filesystem/cloud that ma

I worry a lot about those things. I am sending this to my colleagues. It's too easy to set up new sysop tools on the shiny new cluster/filesystem/cloud that makes everything easy. However how do you fix that shiny but complex thing if your tools are down?