HP Archive Backup System for OpenVMS Guide to Operations

4
Media Management
This chapter expands on the MDMS object summary given in Chapter 2, and describes all the
MDMS objects in detail, including the object attributes and operations that can be performed on
the objects.
Before going into details on each object, however, the use of the MDMS$CONFIGURE.COM
procedure is recommended to configure your MDMS domain and the objects in it. In many cases
this should take care of your entire initial configuration.
4.1 MDMS Domain Configuration
4.2 Domain
If you are configuring your MDMS domain (including all objects in the domain) for the first
time, HP recommends that you use the MDMS$CONFIGURE.COM command procedure. This
procedure prompts you for most MDMS objects, including domain, drives, jukeboxes, media
types, locations and volumes, and establishes relationships between the objects. The goal is to
allow complete configuration of simple to moderately complex sites without having to read the
manual.
The configuration procedure offers extensive help, and contains much of the information contained
in this chapter. Help is offered in a tutorial form if you answer “No” to “Have you used
this procedure before”. In addition, for each question asked, you can enter “?” to have help on
that question displayed. Furthermore, if you type “??” to a question, not only will the help be displayed,
but in most cases a list of possible options is also displayed.
This procedure is also useful when adding additional resources to an existing MDMS configuration.
To invoke this procedure, enter:
@MDMS$SYSTEM:MDMS$CONFIGURE.COM
and just follow the questions and help.
A complete example of running the procedure is shown in Appendix A.
The MDMS domain encompasses all objects that are served by a single MDMS database, and all
users that utilize those objects. A domain can range from a single OpenVMS cluster and its
backup requirements, to multi-site configurations that may share resources over a wide area network
or through Fibre Channel connections. An OpenVMS system running MDMS is considered
a node within the MDMS domain, and MDMS server processes within a domain can
communicate with one another.
The MDMS domain object is created at initial installation, and cannot be deleted. Its main focus
is to maintain domain-wide attributes and defaults, and these attributes are described in the following
sections.
Media Management 4–1