On Wed, Mar 26, 2008 at 12:20 AM, Jason Wright <[EMAIL PROTECTED]> wrote:
> At my organization, we have been putting a lot of work into Linux-HA
>  implementation. I have even wrote an OCF Resource Agent for exporting
>  NFS shares using exportfs.
>
>  I have 2 concerns with Linux-HA
>
>  1. I heard that Linux-HA is moving away from resource groups. To me
>  this doesn't seem to make sense It is an easy way to organize, start
>  and stop resources that are related. Can anyone confirm or deny this
>  accusation.

Deny, they'll always exist.

What people should understand however, is that they are "just" a
syntactic shortcut for a bunch of regular resources and a few ordering
and colocation constraints.

The trade-off is that they don't expose the full potential of what is
possible if they were configured the long way

>  2. Sometime when an unrelated resource is broken, I will change a
>  different resource or resource group's target_role. Even though the
>  cluster registers that the target_role has changed, the status of the
>  resource WILL NOT change.

Perhaps the individual resources have their own target_role set.
If you create this situation again, please create a bug and attach the
output of:
   cibadmin -Ql

> In order for Linux-HA to be reliable, I
>  can't worry about unrelated resources.
>
>  Number 2 concerns me much more. While I am running 2.1, most
>  distributions ship with 2.07. Is there an advantage to having 2.07?

Not unless you have 2.0.6 or something even older ;-)

>  2.08 is the version which implements the quorum server and is very
>  important. What might cause Linux-HA to be unresponsive to changes?

Assuming you mean to the configuration, then its hard to say without
seeing the configuration (see above).
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