DHCP failover - disk full, can not commit to lease file

[Steven Carr]

How does the DHCP server know what the cause of the error is and why
would it care? all it knows is that it had an problem writing to the
lease file which could be caused by any number of issues not just a
full disk. DHCP failover isn't mean't to guard against your server
running into problems, it's there to failover in the event of
communications failure between the network and one of the DHCP
servers. Yes you could argue that if it can't write the lease it
should failover, but your system is in much bigger trouble if you
don't have any free disk space so the DHCP issue becomes moot.

As has already been said you should be monitoring the server and
alerting if you ever get anywhere near filling a disk, it's called
server management/system administration.


On 28 May 2013 13:19, Ted Lemon <Ted.Lemon at nominum.com> wrote:
> On May 27, 2013, at 11:58 PM, Glenn Satchell <glenn.satchell at uniq.com.au> wrote:
>> Your monitoring system could always detect no disk free space and shut
>> down the dhcp service?
>
> The DHCP server got an error when it tried to write the lease, so it knows that it's down.   Why wait for a mythical monitoring system to do something?
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users