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Chapter 4 SCSI Commands
READ ATTRIBUTE Command (8Ch)
DLT-S4 Interface Reference Guide
257
MEDIUM WIDTH:
Specifies the width of the medium supported by this
density. The value is expressed in units of tenths of millimeters. The value
in this field is rounded up if the fractional value of the actual value is
greater than or equal to 0.5. The Medium Width field may vary for a
given density depending on the mounted medium. A value of 00h
specifies the width of the tape is undefined.
ASSIGNING ORGANIZATION:
Identifies the organization responsible for
the specifications defining the values in the
MEDIUM DENSITY CODE
attribute. The Assigning Organization field is set to “Quantum.”
MEDIUM DENSITY CODE:
Contains the actual density of the tape based on
the following rules:
1 If the tape has been written, this attribute reports the actual density of
the data on the medium.
2 If the host has selected a valid density with a
MODE SELECT
command, this attribute reports the selected density.
3 If neither rule
1
nor
2
is true, this field reports the native density that
can be written on this tape.
MEDIUM MANUFACTURE DATE:
Identifies the date of manufacture of the
medium. The format is YYYYMMDD; that is, 4 numeric ASCII characters
for the year followed by 2 numeric ASCII characters for the month
followed by 2 numeric ASCII characters for the day with no intervening
spaces.
MAM CAPACITY:
The total capacity of the medium auxiliary memory, in
bytes, at manufacture time. It does not indicate the free space of an
unused medium auxiliary memory because some of the medium
auxiliary memory space may be reserved for device-specific use making it
inaccessible to the application client.
MEDIUM TYPE
and
MEDIUM TYPE INFORMATION:
Indicates the type of
media on which the MAM chip resides. At this time, Super DLTtape
media only supports the Data Medium type.