ZyXEL Communications NSA325 User Manual page 343

Click File > New > Blank Disk Image.
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In the New Blank Image screen, do the following:
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Enter the name of the sparse bundle in Save As. The format of the name is
5a
"ComputerName_MacAddress". Use "-" for spaces in the computer name and remove all colons
in the MAC address. In this example, the sparse bundle name is Coffee-
Bean_001f5bed6c7a. Then select the place that you want to save the file in Where.
Enter a name for the volume. Here, we use TimeMachine.
5b
Setup the Volume Format, Encryption, Partitions, and Image Format as step c shows in
5c
the screen below.
After finishing steps a - c, setup the Volume Size of the sparse bundle. This is the virtual
5d
volume size for you to save your files. Select Custom if you want to manually enter the volume
size. It is suggested to set the size larger than that of your physical hard drive so all files on
your hard drive can be backed up. to Click Create to start creating the sparse bundle.
Note: Set the Volume Size after you've set Image Format to sparse bundle disk
image. The size of a sparse bundle file is smaller than the full physical size because
it only takes up as much actual disk space as the data contained within (without
unused space). You might not be able to set the Volume Size if your image format
is not correct.
Media Server User's Guide
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Chapter 19 Using Time Machine with the NSA
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