Browse Prior Art Database

Using Policy Domains to Delegate Administrative Authority in Distributed System Managed Storage

IP.com Disclosure Number: IPCOM000105479D
Original Publication Date: 1993-Aug-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 4 page(s) / 128K

Publishing Venue

IBM

Related People

Kaczmarski, MA: AUTHOR [+2]

Abstract

Traditional Systems Managed Storage (SMS) products have a single level of authority for specifying and administering policy (management class definitions and assignment of automatic class selection constructs). An example of such an environment is IBM's Data Facility System Managed Storage for MVS, DFSMS/MVS. In a distributed environment, customers require a method for delegating this authority to individuals familiar with the information managed on particular sets of nodes in the enterprise network.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 51% of the total text.

Using Policy Domains to Delegate Administrative Authority in Distributed System Managed Storage

      Traditional Systems Managed Storage (SMS) products have a
single level of authority for specifying and administering policy
(management class definitions and assignment of automatic class
selection constructs).  An example of such an environment is IBM's
Data Facility System Managed Storage for MVS, DFSMS/MVS.  In a
distributed environment, customers require a method for delegating
this authority to individuals familiar with the information managed
on particular sets of nodes in the enterprise network.

      Described is a construct that supports delegation of policy
administration authority over mutually-exclusive sets of nodes for
distributed systems managed storage products.

      A policy configuration specifies information that is used by a
system managed storage (SMS) product to determine the proper
processing for files that it manages.  The information specified in a
policy configuration includes the following:

o   Automatic Class Selection (ACS) routines that assign SMS
    attributes to files based on customer-defined criteria.  The
    attributes may determine the type of storage media that files are
    placed on, or the frequency with which files are backed up.
o   Management classes that, when assigned to files by ACS, determine
    how files are managed by the system.  This management includes
    how often files are backed up, how long backup copies are
    maintained, and how the files might be dealt with to ensure that
    sufficient free disk space is maintained on the system.
o   Destination definitions that determine where backup copies are
    stored for a file, or where files are kept if they are migrated
    from the filesystem.

      The specification of policy configuration information involves
knowledge of the data that is stored in computer files managed by the
system, and an understanding of the user's requirements for access
and recoverability for those files.

      Existing IBM SMS products provide administrative authority for
defining and activating policy configurations.  In most cases, these
SMS implementations are limited to a few nodes executing on the same
host operating system (MVS or VM).

      A distributed SMS environment involves many client nodes on
which a number of differing operating systems execute.  While a
single policy configuration could be specified for all client nodes
in an installation, customers require support for delegating the
administrative task to individuals who can specify policy for
specific sets of nodes in the enterprise.

      Provision for the delegation of policy authority in distributed
SMS products is possible through the introduction of a policy domain
construct, as illustrated in the figure.

      Client nodes in a distributed SMS environment are defined to
belong to a policy domain.  The pol...