HP Archive Backup System for OpenVMS Guide to Operations
HP Archive Backup System for OpenVMS Guide to Operations
HP Archive Backup System for OpenVMS Guide to Operations
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User Interfaces<br />
6.2 DCL Interface<br />
6.2.2 Object Lists<br />
Following the object keyword, you should enter an object name. This must be the name of an<br />
already-existing object unless the verb is “Create”, in which case the object must not already<br />
exist.<br />
The qualifiers <strong>for</strong> all commands are non-positional and may appear anywhere in the command<br />
line.<br />
There are two exceptions <strong>to</strong> the general command syntax, as follows:<br />
• The Move verb takes two arguments. The first is the object name as normal, and the second<br />
is a destination object name. The destination object name is not preceded by an object keyword.<br />
An example of a Move command is:<br />
MDMS MOVE VOLUME TLZ234 TLZ_JUKE/SLOT=4<br />
• The Report verb, which takes a variable number of arguments. This verb uses the syntax of<br />
the old SLS S<strong>to</strong>rage Report Volume command. Since the Report verb does not operate on<br />
any specific object, the first argument is always the keyword “Volume”, and the other argument<br />
is a comma-separated list of display and/or selection attributes. For example:<br />
$ MDMS REPORT VOLUME VOLUME,STATE=ALLOCATED,SCRATCH_DATE,PLACEMENT,PLACNAME<br />
With this release of MDMS, all of the following commands accept a list of objects, so that you<br />
can operate on multiple objects in a single command:<br />
• CREATE<br />
• DELETE<br />
• SET<br />
• SHOW<br />
6.2.3 Qualifier List<br />
If you specify an attribute in a CREATE or SET command and use an object list, then that<br />
attribute value is applied <strong>to</strong> all objects in the list.<br />
Certain qualifiers accept a list of attributes, and the list can be applied in one of three ways using<br />
an appropriate qualifier:<br />
• /ADD - The specified value or list is added <strong>to</strong> any pre-existing list; this is the default option<br />
if you do not specify a qualifier<br />
• /REMOVE - The specified value or list is removed from any pre-existing list<br />
• /REPLACE - The specified value or list replaces any pre-existing list.<br />
Consider the following examples:<br />
MDMS CREATE GROUP COLORADO/NODES=(DENVER, SPRINGS, PUEBLO)<br />
The group Colorado contains nodes Denver, Springs and Pueblo<br />
MDMS SET GROUP COLORADO/NODE=ASPEN<br />
The group Colorado now contains nodes Denver, Springs, Pueblo and Aspen. With no list qualifier<br />
specified, /ADD is applied by default.<br />
MDMS SET GROUP COLORADO/NODE=ASPEN/REPLACE<br />
The group Colorado now contains only node Aspen.<br />
6-16 User Interfaces
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