Windows operating systems

Examples: UNC name backup

You can back up shared files in a network through the use of a UNC name. Some examples of backing up UNC name files are shown.

A UNC name is a network resource name for a share point on a workstation. The resource name includes the workstation name assigned to the workstation and a name you assign to a drive or directory so that it can be shared. The name you assign is also called a share point name.

Using a UNC name permits you to back up specific shared directories to a separate file space. This is useful if, for example, you or an administrator want to back up a small portion of data that you would otherwise be unable to access. Drives are not backed up to a separate file space.

Every local drive is accessible using a UNC name except for drives containing removable media (such as tapes, cartridges or diskettes). Access these drives by using a predefined administrative share name consisting of the workstation name and the local drive letter, followed by $. For example, to specify a UNC name on the c: drive for workstation ocean, enter:
\\ocean\c$
The $ sign must be included with the drive letter.

To enter a UNC name for workstation ocean and share point wave, enter:

\\ocean\wave 
When accessing files, you do not need to enter the letter of the drive except for drives containing removable media.

See the following table for examples showing selective backup of files using UNC names. In these examples, assume that:

  • The workstation running dsmc is major.
  • Share names betarc and testdir from workstation alpha1 are mapped to drives r and t, respectively.
Table 1. UNC examples
Example Comment
dsmc sel \\alpha1\c$\ name of remote file space is \\alpha1\c$
dsmc sel \\major\c$\ name of local, fixed file space is \\major\c$
dsmc sel a:\ name of local, removable file space is volume label of a:
dsmc sel \\alpha1\betarc\ name of remote file space is \\alpha1\betarc
dsmc sel \\alpha1\testdir\ name of remote file space is \\alpha1\testdir
dsmc sel d:\ name of local, fixed file space is \\major\d$
dsmc sel c:\ file space name is \\major\c$
dsmc sel r:\ file space name is \\alpha1\betarc

You can also specify UNC names for files in your include-exclude and domain lists.