Commands138
Descriptor blocks
The header is followed by one or more Report Density Support descriptor blocks with the following
format:
The values reported for Ultrium 3 format tapes are as follows:
7 6 5 4 3 2 1 0
0 Primary Density Code
1 Secondary Density Code
2 WRTOK DUP (0) DEFLT Reserved (0)
3 Reserved (0)
4 Reserved (0)
5 (MSB)
Bits per mm
7 (LSB)
8 (MSB)
Media Width
9 (LSB)
10 (MSB)
Tracks
11 (LSB)
12 (MSB)
Capacity (MB)
15 (LSB)
16 (MSB)
Assigning Organization (LTO-CVE)
23 (LSB)
24 (MSB)
Density Name
31 (LSB)
32 (MSB)
Description
51 (LSB)
Primary Density Code 44h This is reported via the Mode Sense command.
Secondary Density Code 44h Not used
WRTOK The Write OK flag indicates whether the drive can write at the density
indicated by the Density Code.
0 The drive does not support writing to a tape with this density.
1 The drive is capable of writing at this density to the current
tape (if the Media bit in the CDB = 1) or for some tape (if
Media = 0).
DUP The Duplicate flag will be set to zero for every descriptor block indicating that
each density is only reported once.
DEFLT The Default flag will be set for the density for which the currently mounted
medium is formatted and clear for all other densities.
Bits per mm 4880
