CARP on -CURRENT

[Freddie Cash]

On Fri, Feb 3, 2012 at 1:35 AM, Andrew Hobbs <andrew.hobbs at ai.net> wrote:
>> On 2 February 2012 04:26, Andrew Hobbs <andrew.hobbs at ai.net> wrote:
>> > I much appreciate the responses and I was able to get CARP functioning
>> > using the new ifconfig syntax under -CURRENT. Having done that, CARP
>> > is now acting as it should, though now I have a new challenge with
>> > devd and automatic firing of scripts during CARP failover. It appears
>> > that the documented method of doing this at
>> > http://www.freebsd.org/doc/handbook/disks-hast.html no longer works
>> > with the suggested devd.conf setup; notify 30 {
>> >        match "system" "IFNET";
>> >        match "subsystem" "carp0";
>> >        match "type" "LINK_UP";
>> >        action "/usr/local/sbin/carp-hast-switch master"; };
>> >
>> > notify 30 {
>> >        match "system" "IFNET";
>> >        match "subsystem" "carp0";
>> >        match "type" "LINK_DOWN";
>> >        action "/usr/local/sbin/carp-hast-switch slave";
>> >
>> > Is it likely that the triggers associated with CARP for devd have changed due to the recent new CARP overhaul? Does anyone know what the new triggers may be?
>> >
>>
>> You will need to change this to something like (as taken from man carp):
>>          match "system"          "CARP";
>>          match "subsystem"       "[0-9]+@";
>>          match "type"            "(MASTER|BACKUP)";
>>
>> The subsystem now is generated as
>> snprintf(subsys, IFNAMSIZ+5, "%u@%s", sc->sc_vhid, sc->sc_carpdev->if_xname);

> Thanks for the info. I was able to get the triggers firing from devd. I also noticed that the man page on 'carp' references a "carpcontrol.sh" script as an action. Has this script been prototyped anywhere yet?

Mind posting the devd.conf entries you are using?  Maybe submitting a
docs PR with them included, to update the HAST page?

Thanks.  I haven't played with HAST and the new CARP code yet.

-- 
Freddie Cash
fjwcash at gmail.com