The datacentre be rebooting your server in order to install to a new kernel. We will post updates in our support portal: www.myvdh.com when the reboot window begins, and if any issues arise for your specific server. Total downtime is expected to be less than 30 minutes during the maintenance window:
Start: Friday, June 14, 2013 13:00
End: Friday, June 14, 2013 19:00
Please note: your server may be rebooted at any time during the window above.
This new kernel provides enhanced security updates and server performance upgrades, and it is necessary to continue operating the server at peak performance levels.