Following on from the last post, I’ve brought my NFS RAC stuff up to date also.
I noticed I had not done a RAC install using NFS on Oracle Linux 6, so I threw that in for good measure too.
Just as a little history to this… I was doing the desktop Oracle RAC thing (using VMware then VirtualBox) for a while, when I started reading some blog posts by Kevin Closson about NFS. At the time, NFS filers were considered the poor relation to SANs, which was obvious or they wouldn’t be so cheap in comparison right? In those articles Kevin pointed out that most people’s systems at the time probably weren’t capable of maxing out a decent filer if it were set up correctly. Since NFS is a cluster file system, that got me thinking I should try RAC on it to see how easy it was. That was in the Oracle 10g days. How time flies when you are having fun…
I finally got my server problems sorted out yesterday, so I was able to do a 12c virtual RAC installation. You can see what I did here:
The setup is pretty much the same as the 11gR2 setup. So there’s no real drama at all.
With the basic installation articles out of the way I can start having a play with the functionality.
I’ve now got 12c running under VirtualBox on my server (Oracle Linux), desktop (Fedora 18), laptop (OS X) and desktop at work (Windows 7). If I can just get it running on my Nexus 4 and Nexus 7…
As a follow-on from my 10g RAC on NFS article, I thought it would be nice to have an 11g RAC on NFS article. The process is very similar, with a couple of exceptions:
- The Virtual IP Configuration Assistant (vipca) runs in silent mode without any problems now. Under 10g, you had to use a “real” public IP address for this to work. Under 11g it now works with private IPs like “192.168.x.x” etc.
- Oracle 11g includes a Direct NFS Client for “optimized” Oracle over NFS performance. I don’t have the relevant kit to do a performance comparison, so I don’t know if it’s worth it or not. If someone has some figures for this I would be interested to hear them.
Update: For information on Direct NFS Client performance look here.