[Linux-HA] Re: Fighting again with Linux-HA, DRBD Primary/Secondary

[Adrian Chapela]

Hello again!

> hi Adrian
>
>  
>   
>> Using your config with the drbd official script in the slave node the
>> drbd isn't started but the monitor said that it is started. A
>> improvement is drbd script supports the two resources, with my config I
>> can't make it works with two resources. With my script all is running
>> OK, I don't know why but I am not implementing notify action in my
>> script, and official script seems to fail at this action.
>>
>> Have anyone else tried official script with two resources ? 
>>     
I have some light of my problem. I have made some tests and I have found 
some differences between versions of drbd and Heartbeat.

Official Script:
Heartbeat 2.1.4 + DRBD 8.0.13 -> Master node is OK, Slave node is shown  
as started but I hadn't moduled loaded
Heartbeat 2.1.4 + DRBD 8.1.27~rc1 -> Master node is OK, Slave node is 
shown  as started but I hadn't moduled loaded
Heartbeat 2.99.1 + DRBD 8.0.13 -> Master node is OK and Slave is OK
Heartbeat 2.99.1 + DRBD 8.1.27~rc1 -> Master node is OK and Slave is OK

It could be a problem on drbd OCF script of old versions, but Heartbeat 
2.1.4 is a stable version. If you want to use Hearbeat 2.1.4 with 2 DRBD 
resources, you should do a new OCF script or use my script.

My script, is OK always.


>
> yep, i just set up a 2 nodes with 2 drbd resources (one on each node). 
> using debian etch,  pacemaker 1.0/heartbeat 2.99, drbd 8.2.6. 
>
> the drbd-stuff i had to backport from "expermintal"*. the 8.0.13 version 
> vom backports.org had problems in failover. often the resources gone to 
> "Consistent" state on failover (AKA it didn't work). Problems gone away 
> with 8.2.6 version.
>
> node1: DRBD, Filesystem, IPAddr2, Mysql
> node2: DRBD, Filesystem, IPAddr2, Apache
>
> the drbd connection goes over a cross-over cable between the 2 servers.
>
>
> - Thomas
>
> * http://packages.debian.org/search?
> suite=experimental&section=all&arch=any&searchon=names&keywords=drbd8 
>
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>
>