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Windows Vista Security: Praxisorientierte Sicherheit für Profis by Marcus Nasarek

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Chapter 19: Managing Disks and Drives
4. Specify the space that you want to use on each disk by selecting each disk in the
Selected listbox and then using the “Select the amount of space in MB” listbox
to specify the amount of space to use on the selected disk. While spanned vol-
umes can use all available space on any selected dynamic disk, striped volumes
must use an equal amount of space on each disk.
5. Follow steps 4–10 in the preceding section, “Preparing Disks for Use.”
Shrinking or Extending Volumes
In Disk Management, you can change the size of simple volumes and spanned vol-
umes. When you reduce the size of a volume, you shrink the volume to free up avail-
able space. When you increase the size of a volume, you extend the volume into
unallocated space. For spanned volumes on dynamic disks, the space can come from
any available dynamic disk, not only those on which the volume was originally cre-
ated. This enables you to combine areas of free space on multiple dynamic disks and
use those areas to increase the size of an existing volume.
You can extend simple and spanned volumes only if they are formatted and the file-
system uses NTFS. You can’t shrink or extend striped volumes.
You can shrink a simple or spanned volume by completing the following steps:
Figure 19-10. Selecting the disks to span or stripe
Preparing Disks for Use
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1. In Disk Management’s Graphical view, right-click the volume that you want to
shrink and then select Shrink Volume. This displays the Shrink dialog box
shown in Figure 19-11.
The Shrink dialog box provides the following information:
Total size before shrink in MB
Shows the current capacity of the volume in MB. This is the formatted size
of the volume.
Size of available shrink space in MB
Shows the maximum amount by which you can shrink the volume. This
doesn’t represent the total amount of free space on the volume. Instead, it
represents the maximum amount of space that can be removed safely.
Enter the amount of space to shrink in MB
Shows the total amount of space that will be removed from the volume. The
initial value defaults to the maximum amount of space that you can remove
from the volume.
Total size after shrink in MB
Shows what the total capacity of the volume in MB will be after the shrink.
This is the new formatted size of the volume.
2. Enter the amount of space to shrink the volume and then click Shrink to shrink
the volume.
You can extend a simple volume or a spanned volume by completing the following
steps:
1. In Disk Management’s Graphical view, right-click the volume that you want to
extend and then select Extend Volume.
2. When the Extend Volume Wizard opens, read the introductory message and
then click Next.
Figure 19-11. Shrinking the volume

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