[Pacemaker] Seeking advice on debian 2 node active/passive webserver

[Matthew Palmer]

On Wed, Dec 30, 2009 at 10:04:43AM +0100, fred at fredleroy.com wrote:
> Hi all,
> 
> I'm a real newbie to pacemaker and after quite a few reading, I believe my
> setup would be the following :
> - 2 node cluster active/passive
> - using debian lenny, 1 nic per node, hard raid1 on each node
> - plan to use the corosync/pacemaker package
> - each node will host drdb (protocol c), ip, apache and mysql services
> - drdb will be used for apache and mysql conf and data files
> - will group ip, apache and mysql
> - will use ms for drdb
> - drdb will be using internal meta data
> - group of services will be collocated on drdb master
> - order group after drdb master.
> 
> Is this a workable setup ?

Yes.  We do very similar setups for several customers.

> I'm a bit worried about performance issues regarding disk latency,
> especially with one nic (lan is gigabit).

Uhm... disk latency with one... NIC?  Do you mean that your write IO latency
might not be so hot with a single NIC?  That is a possibility; I'd be
putting another Gb NIC in the machines and connect them with a crossover
cable.

- Matt