IBM Ultrium Internal Tape Drive T200, Справочное руководство

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REPORT DENSITY SUPPORT
Table 72. REPORT DENSITY SUPPORT Command
7 6 5 4 3 2 1 0
0 Operation Code (44h)
1 Logical Unit Number (0) Reserved Media
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7
Allocation Length
8
9 Control
The REPORT DENSITY SUPPORT command returns details about the tape
formats supported by the drive. The data is returned as a header and a series of
descriptor blocks. If the Media flag is set, then one descriptor block is returned with
the data for the currently loaded tape. If the Media bit is clear, then one descriptor
block is returned for each format supported by the drive.
The format of the REPORT DENSITY SUPPORT header is as follows:
Table 73. REPORT DENSITY SUPPORT Header
7 6 5 4 3 2 1 0
0
Available Density Descriptor Length
1
2 Reserved
3 Reserved
The Available Density Descriptor Length gives the total amount of data that is
available to be returned.
Chapter 2. Command Support
55