[PLUG] Insuring that server comes up in working order

[Lancashire, Pete]

if the devices that you depend on being there first
have a network connection, you can test via things
like SNMP for their status. The UPS's that don't
have their own network connection sometimes have
serial<->SNMP options, and there are serial port
drivers as well. some other devices get tricky,
such as CSU/DSUs. There I use to test for something
upstream from them such as a router.

in init.d or equiv. make your script be one that runs
before those that depend on the other stuff being
up. I'm not sure about Linux, but maybe one way to have a 'dont want to wait
flag' set via grub, and make it one of the
options in grubs boot screen

-pete



> -----Original Message-----
> From: Travis Spencer [mailto:travislspencer at gmail.com]
> Sent: Tuesday, May 30, 2006 9:10 AM
> To: PLUG at lists.pdxlinux.org
> Subject: [PLUG] Insuring that server comes up in working order
> 
> 
> Hey All,
> 
> I'm in charge on an FC4 box here at work but don't have control of
> anything else on my employer's network (UPS, other servers, etc.)
> Every once and a while the power goes out and taking my machine, DHCP,
> and NIS with it.  My server comes up faster than the others making it
> inaccessible till I can physically go to it and reboot it.  Does
> anyone have a suggestion on how to insure that my server comes up in
> working order?  My only idea is to write an init script that sleeps
> for 5 minutes that can be bypassed somehow when the extra wait time
> isn't needed.  Any thoughts?
> 
> -- 
> 
> Regards,
> 
> Travis Spencer
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