StorageTek Host Software Component 6.0, Руководство системного программиста

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144 VM/HSC 6.0 System Programmer’s Guide
1st ed., 6/30/04 - 312579601
If you enter any VOLATTR statement that globally defaults to all volumes (i.e.,
VOLATTR SER(*) REC(18)), you
must precede this statement with VOLATTRs
specifying the cleaning cartridges for each type of transport defined in the ACS. Cleaning
cartridges for longitudinal drives should be defined as MED(S); for helical drives,
MED(DD3D); for 9840 drives, MED(STK1U).
If global defaults are used to specify RECtech for large ranges of volumes, specify both
MEDia and RECtech on all preceding VOLATTR statements. Otherwise, for a given
VOLSER, the MEDia may be obtained from an earlier statement.
In the following example, the media type obtained from an earlier statement results in a
default RECtech of STK1R. Then, the global statement that follows specifies a global
RECtech of 36track, which is incompatible with the earlier statement.
VOLATTR SERIAL(EAG000-EAG999) MEDIA(STK1R)
VOLATTR SERIAL(*) RECTECH(36TRACK)
Disabling a VOLATTR Definition
Use the following procedure to disable a VOLATTR definition.
1. Edit the definition data set containing the current VOLATTR statements.
2. Delete the parameters of the VOLATTR statement you want to disable, or delete or
comment out the VOLATTR statement.
3. Issue the VOLDEF command to reload the definition data set.
With the modified definition data set in effect, the HSC searches the remaining
VOLATTR statements to determine the media type and recording technique for a volume.
To disable all VOLATTR definitions, load a definition data set that contains only the
statement VOLATTR SERIAL(*). Refer to Table 7 on page 148 and Table 8 on page 150
to see a list of VOLATTR media and recording technique default values.
VOLATTR