and shadow copies are enabled on it, users cannot access the shadow copies if they traverse from
the host volume (where the mount point is stored) to the mounted drive.
For example, assume there is a folder
F:\data\users
, and the
Users
folder is a mount point
for
G:\
. If shadow copies are enabled on both
F:\
and
G:\
,
F:\data
is shared as
\\server1\data
, and
G:\data\users
is shared as
\\server1\users
. In this example,
users can access previous versions of
\\server1\data
and
\\server1\users
but not
\\server1\data\users
.
Managing shadow copies
The vssadmin tool provides a command line capability to create, list, resize, and delete volume
shadow copies.
The system administrator can make shadow copies available to end users through a feature called
“Shadow Copies for Shared Folders.” The administrator uses the Properties menu (see
) to turn on the Shadow Copies feature, select the volumes to be copied, and
determine the frequency with which shadow copies are made.
Figure 12 System administrator view of Shadow Copies for Shared Folders
The shadow copy cache file
The default shadow copy settings allocate 10 percent of the source volume being copied (with a
minimum of 350 MB), and store the shadow copies on the same volume as the original volume.
(See
). The cache file is located in a hidden protected directory titled “System
Volume Information” off of the root of each volume for which shadow copy is enabled.
Volume shadow copies
41
