We recently transitioned from Ubuntu 12 to Ubuntu 14 server installations and started to notice that the servers are occasionally go to sleep after couple of hours to days intermittently.

Tried/validated these items but did not help:

Currently, the systems are running without fail after making these changes:

  • Adding consoleblank=0 to /etc/default/grub This keep console active similar to Ubuntu 12.

    GRUB_CMDLINE_LINUX_DEFAULT="net.ifnames=1 biosdevname=0 consoleblank=0

  • Running pingdom/curl requests for the server every 5 mins to keep the HDD active. This is short term solution and not positive it is helping anyway.

Question: consoleblank=0 appears to be working but has been rejected. Does anyone know the inner workings or can share the power/sleep/hibernate mode changes from Ubuntu 12 to Ubuntu 14?

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