HFS FILE SYSTEM READER WINDOWS

This makes it possible for application programs that are designed to run in a UNIX environment to handle files as they normally would under OS/390. OS/390 then manages the hierarchical files through its own HFS facility.ДЄs a result, HFS files can be used in both the UNIX System Services and OS/390 environments.

In fact, the entire HFS structure, from the root directory on down, is stored as a single data set on an IBM mainframe. So whereas a PDS can be treated as a sequential file in some cases, directories do not have the same capabilities. However, unlike PDS data sets, directories are not considered files themselves. ThatвЂ™s because each directory contains information about itself as well as the files it holds, including their names, their size, the date they were created or modified, and other relevant information. Mainframe to UNIX migration- Top approachesДirectories and their subordinate files can be considered analogous to partitioned data sets and their members.The root directory can be considered analogous to the master catalog in OS/390 and will typically contain only other directories (also called subdirectories). At the highest level is the root directory.ДЇiles in UNIX system are hierarchical in nature Each directory is, in turn, a member of another directory at a higher level in the hierarchy.

HFS FILE SYSTEM READER WINDOWS

Files in a UNIX environment are organized into a hierarchical structure, If this looks familiar to you, thatвЂ™s because both the DOS and Windows operating systems use a hierarchical file organization too.ДЄs you can see, all files within a hierarchical file system (HFS) are members of a directory.

Hfs file system reader