Unattended, unintended system shutdown - why?

[David Fletcher]

On Sat, 2015-03-07 at 22:22 +0000, Dan Purgert wrote:
> On Sat, 07 Mar 2015 13:14:35 +0000, David Fletcher wrote:
> 
> > 
> > Then, today, I walked into town for couple of hours, came back, switched
> > on my laptop to check my mail and... nothing. Failed to connect. WTF?
> > ssh - nothing. ping - nothing. went upstairs to check and it was powered
> > off. Pressed the button and it powered up, and is working again. Why? I
> > have absolutely no idea. Yes it's running on a UPS so this should never,
> > ever happen.
> > 
> > Any idea why it did this, please?
> > 
> 
> Could be that the battery's not as reliable as you thought -- how old is 
> it? 

Batteries replaced 2014-03-07


> 
> In addition to that - have you changed your system layout since getting 
> the battery?  E.g. newer / more power hungry server, or other devices 
> getting plugged into the battery?

Only things changed are the hard drives. Complete mystery to me.