Report Density Support; Report Density Support Header - IBM Ultrium Internal Tape Drive T200 Reference Manual

REPORT DENSITY SUPPORT

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:
The Available Density Descriptor Length gives the total amount of data that is
available to be returned.
Table 72. REPORT DENSITY SUPPORT Command
7 6
0
1 Logical Unit Number (0)
2
3
4
5
6
7
8
9
Table 73. REPORT DENSITY SUPPORT Header
7 6
0
1
2
3
5 4 3
Operation Code (44h)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Allocation Length
Control
5 4 3
Available Density Descriptor Length
Reserved
Reserved
2 1
Media
2 1
Chapter 2. Command Support
0
0
55