[ale] Little OT: Bad Linux Sysadmin Practices

[Jeff Hubbs]

Actually - as I pointed out at the time - there's another reason to not 
do that.  You don't want to assume that the three conductors going to 
one power supply are all at the same potential (at the same time) as the 
three conductors in the other always and forever.  If some yobbo is 
working on the first distribution point upstream and drops a toolbox 
onto the connectors, what was once "ground" on one side might 
momentarily become "hot" - and you really don't want the twain meeting 
near each other in your servers.  No.  "Redundant power supplies" are 
for protection against *failure of power supplies*, not failure of mains 
power; protect against the latter in some other combination of ways.

On 10/11/12 6:28 PM, simontek at gmail.com wrote:
> I usually like the split the load between 2 different circuits, but keeping that if one pdu dies, it can still handle the server load ,so you end up with a ton of empty sockets.
> Sent via BlackBerry from T-Mobile
>
> -----Original Message-----
> From: Jim Kinney <jim.kinney at gmail.com>
> Sender: ale-bounces at ale.org
> Date: Thu, 11 Oct 2012 18:24:16
> To: Atlanta Linux Enthusiasts<ale at ale.org>
> Reply-To: Atlanta Linux Enthusiasts <ale at ale.org>
> Subject: Re: [ale] Little OT: Bad Linux Sysadmin Practices
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>
>
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>