I’m loving VirtualBox 4.2.
I’ve been throwing some RAC, WebLogic and Cloud Control installations on it at home and it’s been coping just fine. I’m especially loving the grouping stuff. I’ve got quite a lot of VMs and scrolling down the list can get a little tiresome. Grouping them and collapsing the group is great!
So far I’ve only see one issue with the groups and I’ve not been able to repeat it. When I dragged one Windows VM (with 2 virtual disks) into a group, both virtual disks were physically moved into the new group sub-directory, but the interface “lost” one of the disks. I went into the Virtual Media Manager, deleted the reference to the “missing” disk, then added it by re-selecting the file from the file system. Everything then worked fine.
It’s a major release with a bunch of interesting new features, so I’ve got an interesting few days ahead while I get to grips with it. You can get an idea about what’s in it here.
It’s been about 2 years since I switched across to VirtualBox (when the shared virtual disks feature was introduced). In that time there have been loads of updates to the product. In the same time frame, VMware Server has had zero releases. I still get a lot of people writing to me about issues with VMware Server installations. I immediately tell them to ditch it.
PS. I’ve got nothing against VMware’s paid-for offerings, which do get updates. I just don’t see the point in using them when VirtualBox is free and works great for me.
I had the great pleasure to spend the better part of last week at the Norwegian Oracle User Group’s spring conference. Martin Nash and I helped promote the Real Application Cluster platform on the attendees’ laptop in a program called RAC Attack. RAC Attack has its home on the wikibooks website http://racattack.org where the whole program is documented and available for self-study. The purpose of the hands-on labs which Jeremy Schneider started a few years ago is to allow users to get practical experience installing Oracle Linux, Grid Infrastructure and the RDBMS binaries before creating a two node database. Following the database creation a practical session ensues which explains certain HA concepts with RAC such as session failover. We are planning on greatly enhancing the lab session as we go along. If you have any suggestions about what you would like to see covered by us then please let us know!