Virtualization on the Mac has never had it so good. There are several options available for running almost any x86-based operating system as a VM under Mac OS X, including Parallels, VMware Fusion, and VirtualBox. If you like the fact that Macs are less prone to problems, viruses, and spyware, but you simply have to run a few Windows applications, it’s a great time to be alive.
In that spirit, VMware has opened the doors to the second beta release of VMware Fusion 2, VMware’s Mac desktop virtualization package. There are more than a few new tricks in Fusion 2, including mirrored folders that map a folder on your host Mac to a folder in the VM, such as My Documents. Also nice is the new automatic snapshots feature, which can be configured to take a snapshot of the VM every 30 minutes, every hour, or every day, making rollbacks easy.
[ See also: "Windows on the Mac: Parallels versus VMware Fusion" ]
On the front end, there’s support for video up to 1,080 pixels in Windows XP or Windows Vista, improved 3-D support, and the ability to play games in full-screen mode.
In Mac OS X 10.5 Leopard, you can even mount the disk of a VM without powering up the VM, which can certainly come in handy. Also new is the ability to assign up to four CPUs to a VM, support for the VMrun command-line tools, and the ability to run Mac OS X Server as a guest.
As far as performance goes, VMware claims to have spent lots of time and effort to reduce the overhead of VMs that are running in the background – that is, without focus. The company contends it has made strides in this area in order to decrease overall system load and to minimize the impact of running VMs that might be running only a single application.
The beta has been available for less than a day (go here for the download), and I’m running it on the very MacBook Pro that I’m writing this preview on (a 17-inch model with 2.4GHz dual-core processor and 4GB of RAM). Inside Fusion I’m running a CentOS 5.1 x86_64 guest and a Windows XP guest, and I'm noting snappier performance of the overall system as well as the individual VMs. I don’t have any numbers to back that up, but quickly swapping between OS X apps and the VMs is, well, quite fast.
The Unity feature now extends to Linux guests, and it works quite well, allowing users to run Linux apps in native OS X workspaces.
I have noticed a few oddities in the beta, such as somewhat sluggish NAT performance, and some desktop assignment issues with Spaces. Also, in Unity mode with Windows XP, the taskbar vanished, never to be seen again, even when explicitly called from the menu bar. This might also be a Spaces-related problem. In any event, this is beta code, and I'm not holding it to the same standards as a final release.
On the plus side, the new Fusion beta found and booted my original Fusion VMs without a problem, and proved extremely helpful in installing new VMs, essentially handling the installation of Windows by itself as long as the install CD was in the drive.
VMware Fusion 2.0 Beta 2 is certainly a beta release, but even so, it feels quite polished and well appointed. VMware has some heavy competition in Parallels, which has most of these features already, but Fusion 2 looks very promising.
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