On Thu, Feb 3, 2011 at 4:34 PM, Dave McGuire <mcguire at neurotica.com> wrote:
On 2/3/11 4:32 PM, Barry L. Kline wrote:
? VMware ESXi. ?It's free. ?I use it both personally and at half a dozen
commercial sites, and I love it.
Keep in mind that this product expects to be loaded on bare metal. ?If
you want virtualization on an existing Windows or Linux system then
choose VMWare workstation or VirtualBox.
?Yes, 100% correct.
One consequence of that (I use ESXi at work and love it too) is that
you don't have the same access to underlying hardware with ESXi vs
VMWare Workstation or Player... specifically external USB devices are
accessible to the ESXi layer but *not* the guest OS. This can matter
if you want to use portable hard drives or USB key drives to move data
around.
What we did at work for our off-site backups was to stick an eSATA
card in the host and plumb it through to the guest with device
pass-through. This only works for certain CPU/chipset combinations.
You might also have to twiddle a virtualization-related BIOS parameter
or two to make this work.
Also... ESXi 3.5 _will_ work on 32-bit hosts; ESXi 4.x will not (we
have a mix here). That also have implications for what emulated
hardware types are supported (especially if you are loading VMs
created elsewhere). Specifically, VMware hardware type 4 works on
both platforms, but hardware type 7 won't work on ESXi 3.5.
All that aside, I have spent a lot of time working with this platform
and have a much happier experience with it compared to its immediate
predecessor (VMware Server 2). It's much more stable (400+ days of
uptime and counting) and with the exception of lack of USB
passthrough, it's been a fabulous experience.
So far, I've mostly run Linux as the guest OS on the VMs, but I know
the platform supports DOS and Windows guests; we just don't have much
call for that at work.
-ethan