David Lemstra wrote: > Hello all, > I'm just starting the task of learning OHAC with the aim of setting up a HA > Cluster using Amazon EC2 instances in separate 'availability regions'. > I intend to use remotely synced EBS volumes in each region in order to have > hot-standby failover times. > > Just wondering if anyone has had any experience with this or have any > comments/insight? > > My first concern is will I actually be able to install OHAC? > When setting up AVS for remote volume mirroring, I found it would work with > AMI images where AVS was pre-installed (2008.05 ami-41e70328), but not on > images where AVS needed to be manually installed (2008.11 ami-7db75014). This > is because installing requires changes to the AKI kernel and ARI ramdisk > images, which the public are not yet able to tinker with. > See http://blogs.sun.com/ec2/entry/opensolaris_2008_11_on_amazon#comments > > Does anyone know if this might be a show stopper for OHAC as well? > Thanks, > David
Hi David, As of now, OHAC will not run properly on the OpenSolaris distribution (OpenSolaris 2008.05 or 2008.11). It will, however, run on specific builds of Solaris Express. According to amazon's web site(1), Solaris Express is available, but it sounds like you're using 2008.11 at the moment. Project Colorado(2) will allow OHAC to run on the OpenSolaris binary distribution, but it's not ready yet. So you would need to switch to Solaris Express or wait for project Colorado to be completed. As a caveat, I haven't myself (nor do I know of anyone who has) attempted to install OHAC on amazon EC2. So there's no guarantee it will work even if you switch to Solaris Express. Sorry for the bad news -- I don't mean to discourage you, only to make sure you have all the information. Thanks, Nick (1) http://aws.amazon.com/solutions/featured-partners/opensolaris/, (2) http://www.opensolaris.org/os/project/colorado/
