Features - IBM eserver i5 Handbook

Draft Document for Review October 18, 2004
(NTAP) servers running in the domain. See IBM AS/400 Integration for
Windows Server - Setup, SC41-5439, for details.
Note: The QNTC file system lets you share data with servers that can
communicate using the Windows NT LM 0.12 dialect. The SMB server
(iSeries support for Windows Network Neighborhood) does not use the
Windows NT LM 0.12 dialect.
QOpenSys: QOpenSys is the open systems file system. QOpenSys is
compatible with UNIX-based open system standards, such as Portable
Operating System Interface (POSIX) and XPG. Like the root file system,
QOpenSys takes advantage of the stream file and directory support that is
provided by the IFS. It also supports case-sensitive object names.
QOPT: QOPT is the optical file system. QOPT provides access to stream
data that is stored on optical media.
QSYS.LIB: QSYS.LIB is the library file system. QSYS.LIB supports the
iSeries library structure and provides access to database files and all of the
iSeries object types that the library support manages.
root (/): "root" is the / file system. The root file system takes full advantage of
the stream file support and hierarchical directory structure of the IFS. The root
file system has the characteristics of a Disk Operating System (DOS) and
OS/2 file systems.
UDFS: User-defined file system (UDFS). The UDFS file system resides on an
auxiliary storage pool (ASP). The user creates and manages the UDFS file
system. Independent ASPs in V5R1 use the UDFS structure.
You can interact with any of the file systems through a common interface that
includes commands, menus, displays, and APIs. The interface is optimized for
the I/O of stream data, in contrast to the record I/O provided through the data
management interfaces.

Features

Is a hierarchical directory structure.
Provides support for storing information in stream files that can contain long
continuous strings of data.
Is a common interface that allows users and applications to access not only
the stream files, but also database files, documents, and other objects that
are stored in the iSeries server.
i5/OS and OS/400 (5722-SS1): Architecture
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