[Linux-cluster] power controller is interal/loss of pwer prevents failover: any ideas

[Rick Rodgers]

When you say  redundant power supply, do you mean they  
 have the same IP address?. If not, how does Clumanger handle talking
 to two power supplys? And if one goes down how does it know to 
 talk to the other? Is there a configuration in cluster.xml?

----- Original Message ----
From: Ken Johnson <busyadmin at gmail.com>
To: linux clustering <linux-cluster at redhat.com>
Sent: Sunday, September 10, 2006 9:42:16 PM
Subject: Re: [Linux-cluster] power controller is interal/loss of pwer prevents failover: any ideas

On Sun, 10 Sep 2006 at 21:14 -0700, Rick Rodgers wrote:
> Yes I was, but if the power controller is down (unreachable)
>  and the system (node)  is hung how can these fence anything?
>  By pulling the plug you loose both and you can not be sure of anything
>  since you can not successfully issue a power cycle command.

I'm not sure I understand what you mean by "if the power controller is
down". These systems can be configured with redundant power supplies
and if both power supplies fail then there's not anything you can do
to fence a system.

>  Thanks for your input though.

sure, np

- Ken

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