New Tutorial - RHCS + DRBD + KVM; 2-Node HA on EL6

[Digimer]

On 01/03/2012 04:26 PM, William Muriithi wrote:
> Kelly
> 
> Thanks a lot.  Really well done and very detailed.  Actually, I have
> not seen a how to kind of documentation that is this detailed, 192
> pages long!.
> 
> The cool thing is should someone need to support the cluster for your
> employer, he will have a better time.  Most people,   and I am guilty
> too leaves very little documentation making life really interesting
> for anyone who may work on your project after you are done.
> 
> Curious, I assume you have now deployed KVM widely. Do you have any
> reservation about it?  I found xen really impossible to do without
> compiling stuff, something I really hate, but the KVM is not yet well
> received.  Know any users of KVM, someone like Amazon?
> 
> Anyway, thank again
> 
> William

I used to use Xen (in fact, the previous incarnation of the tutorial is
EL5 + Xen) and those clusters have been running for quite a while just
fine. I never used anything except the stock Xen installs - nothing extra.

As for KVM, I've now been using it for about six months to a year and
I've had great success with it. The biggest win is that it is a lot
easier to support Windows guests in KVM. With Red Hat backing it, it has
come a long way in a hurry.

I don't know what major hosting providers use, in terms of Xen vs. KVM,
but I am sure some big names have both. In short; Both are just fine.
It's more a question of your particular use-case. For me, I want Red Hat
support so under EL5 that was Xen and now under EL6 it is KVM.

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