COBOL Manual for TNS and TNS/R Programs

Input and Output Concepts
HP COBOL Manual for TNS and TNS/R Programs—522555-006
26-2
System File Names
System File Names
A system file name is the name by which the Guardian or OSS file system recognizes
a system file. That name is unique, not only on the system where the file is physically
located, but also within that system’s network.
These rules and the remainder of this topic apply to all system file names in the
Guardian file system. For information about system file names in the OSS file system,
see Files in the OSS Environment.
•
System file names are composed of alphanumeric characters and these special
characters, which are used as delimiters:
°
Backward slash (\)
°
Dollar sign ($)
°
Number sign (#)
°
Colon (:)
°
Period (.)
•
System file names are not case-sensitive; \NODE1.$VOLUME1.SUBVOL1.FILE1
and \node1.$volume1.subvol1.file1 refer to the same file.
Other rules depend on the category of the system file name. The categories are:
•
Permanent Disk File Names
•
Temporary Disk File Names
•
Nondisk File (Device) Names
For information about process file names, see Processes Handled as Files.
Permanent Disk File Names
Permanent disk files are named when they are created. After being created, a
permanent disk file remains on the disk until explicitly purged.
node-name
is a backward slash (\) followed by an alphabetic character and up to six
alphanumeric characters. Example: \mynode. Default: default node.
.
node-name
file-id
.
subvolume-name
.
volume-name
ns ns
ns ns
ns ns
VST617.vsd