A. In Server 2008, writing to dynamically expanding
disks (which allocate space to the Virtual Hard Disk (VHD) as needed)
took about three times as long as writing to fixed-size VHDs (in which
all space is allocated when the VHD is created). This performance
difference is mostly because of the limited metadata caching performed
for dynamic disks.
This has been remedied with Server 2008 R2. The performance of
dynamic disks is essentially equal to that of fixed disks. There's no
significant performance disparity. This means you can now seriously look
at using dynamic disks in a production environment instead of fixed
disks. However, you should still pay very close attention to how much
disk space you're committing to on each volume. You don't want to be in
a situation where you stage lots of dynamic disks that grow beyond the
size of the underlying physical volume.
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A. You should usually use the Failover Cluster
Management Microsoft Management Console snap-in to enable or disable
CSVs, but you can also do it with PowerShell. To enable, run the
following commands:
A. Resource Monitor is available in the System Tools
folder under Accessories in the Start menu. You can also run resmon.exe.
The tool works similarly to the Windows Vista version, with some
redesign and additional information. Shown here is the Server 2008 R2
version of Resource Monitor. You can see some detail on the tabs and
additional view sizes for the overall graphs.
A. Microsoft has announced that the XP virtual machine
used for XP Mode and the final version of Windows Virtual PC will be
available on the day Windows 7 releases to general availability, October
22, 2009.
A. Most password auditing programs use a process that
works on 32-bit platforms but fails on 64-bit platforms. It fails
because of the additional memory protection capabilities of 64-bit OSs,
which prevent dumping password hashes from memory.
I'm glad to report that the latest version of Proactive Password
Auditor from ElcomSoft works great on a 64-bit OS. Passwords can be
dumped on any 64-bit platform. In the example shown here, I'm on a
Windows Server 2008 R2 server core read-only domain controller.
Online
Version 
