DFSMSdfp provides
the foundation for:
- Storage management
- DFSMSdfp includes
ISMF, an interactive facility that lets you define and maintain policies
to manage your storage resources. These policies help to improve the
use of storage devices, and to increase levels of service for user
data, with minimal effort required from users. SMS manages these policies
for the operating system. You can also use the NaviQuest tool under
ISMF to help you migrate to SMS, maintain your SMS configuration,
and perform many testing, implementation, and reporting tasks in batch.
- Tape mount management
- SMS provides a means for implementing tape mount management, a
methodology for improving tape usage and reducing tape costs. This
methodology involves intercepting selected tape data set allocations
through the SMS automatic class selection (ACS) process, and redirecting
them to a DASD buffer. Once on DASD, these data sets can be migrated
to a single tape or small set of tapes, thereby reducing the overhead
associated with multiple tape mounts.
- Data management
- DFSMSdfp helps
you store and catalog information on DASD, optical, and tape resources,
so that it can be quickly identified and retrieved from the system.
You can use the catalog search interface, now part of DFSMSdfp,
to access the catalog.
- Program management
- DFSMSdfp combines
programs into executable modules, prepares them to run on the operating
system, stores them in libraries, and reads them into storage for
execution.
- Device management
- DFSMSdfp is
involved in defining your input and output devices to the system,
and in controlling the operation of those devices in the z/OS® environment.
- Distributed data access
- Distributed data access allows all authorized systems and users
in a network to exploit the powerful features of system-managed storage,
or automated storage management provided by DFSMS. DFSMSdfp uses the Distributed
FileManager (DFM) to support remote access of z/OS data and storage resources from workstations,
personal computers, or any other system on a SNA LU 6.2 network.
The z/OS UNIX System
Services (z/OS UNIX) file system works in conjunction with z/OS UNIX to
provide a full UNIX environment
within the z/OS system. z/OS becomes a full-feature UNIX client or server when coupled
with the z/OS Network File
System (z/OS NFS). With the z/OS UNIX file
system, z/OS programs can directly
access UNIX data. When the z/OS NFS client and z/OS UNIX are
used together, z/OS can act
as a client and access data from any remote system, including another z/OS or UNIX system that is connected using a TCP/IP
network served by a Network File System server.