Everything’s dies… my servers too

Posted: 21/04/2010 in System Administration
Tags: , , ,

Hi All,

yesterday, a server of mine on AWS died without any apparently problem. Simply, it ends to respond on any port: panic!!

What’s happen? Why a server online since mid 2009 went down? How recover any data? Backup or else? How would it takes?

To make it short: after three reboot from panel nothing changes, so nothing but create a new server was the solution.

After detach the ip and terminte the zombie server, I started a new server, attached disk, update the packages of linux release, remapped some paths…. and the server is up and running!!!

All in 30 mins.

<pause>

This is possible using EBS volumes that are persistent resources: mapping persistent folders on a EBS volume you can start and stop any server without loosing datas.

In my post AWS: a simple backup suite, I spent two words about what I mean with “persistent”. On AWS, if you use instance-store image (AMI), you know that root fs is not persisent across a shutdown, so you need to use a secondary disk (from EBS) to store any information you want to keep stored.

In that previous post I made an example with /srv but in reality I use parts of /etc, /var, /opt, and /home.

Unfortunatelly, you can forgot some folder or hope that a very stable system never goes down, but as this fact teachs, everything’ dies… servers too.

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Comments
  1. francescociriaci says:

    Everything… *virtual* servers too.

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