[racattack] Re: RAC Attack in the Cloud (amazon, rackspace, etc)

  • From: Jeremy Schneider <jeremy.schneider@xxxxxxxxxxxxxx>
  • To: "racattack@xxxxxxxxxxxxx" <racattack@xxxxxxxxxxxxx>
  • Date: Mon, 11 Nov 2013 17:13:00 -0600

Marcin - RAC needs to manage its own IPs, even moving them between servers.  I 
don't believe you can do that yet with VPC EC2.  However there are a number of 
third-party (free and commercial) products which virtualize networking and let 
you have your own private network that you completely control; I looked into 
using one of these a few years ago.

I couldn't get openfiler running on EC2 when I tried a few years ago but maybe 
someone has made an image now.  But there are other approaches like (1) just 
using iscsid on any linux distro or (2) using NFS.

I was just emailing someone else about this.  The big question is whether to 
try running directly on the rented instances while providing your own storage 
and your own virtual networking, or whether to use a second layer of 
virtualization like the articles I forwarded earlier.  I've actually fired up 
OEL under QEMU on an EC2 instance - that works.  This approach takes a big hit 
in terms of CPU performance but it offers advantages in networking and storage 
as well as creating a single universal setup that you can run on any cloud 
provider.  (Some third-party network virt products also run on several cloud 
providers.)  Anyway it's a very interesting field to be working in!  Something 
I fiddle around with every now and then.

That being said, at the moment I'm most excited about the work on the dojo - 
especially all the work Seth did! Looking forward to hearing how this plays out 
at UKOUG and/or DOAG!  (Is there a DOAG event this year?)

--
http://about.me/jeremy_schneider
Sent from my iPhone

On Nov 11, 2013, at 4:36 PM, Marcin Przepiorowski <pioro1@xxxxxxxxx> wrote:

> Hi Guys,
> 
> I know that officially RAC is not supported in EC2 but I'm wondering what 
> will prevent it from running in VPC EC2.
> 
> There are private network interfaces and OpenFiler can provide iSCSI devices 
> - I didn't have a chance to test it yet. Is there any showstopper which I 
> missed ?
> 
> regards,
> Marcin
> 
> 
> On Mon, Nov 11, 2013 at 10:15 PM, Yury Velikanov <velikanovs@xxxxxxxxxxx> 
> wrote:
>> FYI: I just reviewed a new series of a blog posts from Marc Fielding 
>> dedicated to that topic. Stay tuned :)
>> 
>> 
>> Best Regards,
>> 
>> Yury Velikanov & Pythian - Love your data
>> 
>> Oracle ACE Director & Team Technical Lead
>> 
>> velikanovs@xxxxxxxxxxx | Twitter: @yvelik | Linkedin
>> Tel: +1 613 565 8696 x 1277
>> www.pythian.com AboutMe
>> 
>> 
>> On Tue, Nov 12, 2013 at 3:15 AM, Jeremy Schneider 
>> <jeremy.schneider@xxxxxxxxxxxxxx> wrote:
>>> I've batted this idea around a few times before - trying to run RAC Attack 
>>> in the cloud. I'd looked into a bunch of approaches, currently I'm favoring 
>>> QEMU (some performance price here but it might work with a large enough EC2 
>>> instance).
>>> 
>>> Just now came across two interesting blog posts on the topic.  It's a corp 
>>> blog and they're selling their product, but still very informative and they 
>>> do have some actual numbers about QEMU.  (Not encouraging numbers but I'm 
>>> still interested in trying this sometime to see if it works!)
>>> 
>>> If anyone's interested, here are the blog posts:
>>> http://www.ravellosystems.com/blog/nested-virtualization-with-binary-translation/
>>> http://www.ravellosystems.com/blog/nested-virtualization-shootout-ravello-vmware-qemu/
>>> 
>>> -Jeremy
>>> 
>>> --
>>> http://about.me/jeremy_schneider
>> 
>> 
>> --
>> 
> 
> 
> 
> -- 
> Marcin Przepiorowski 
> http://oracleprof.blogspot.com

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