M2488 PRODUCT GUIDE TAPE UNIT SCSI COMMANDS
April 1997 CG00000-011503 REV. A 4-105
4-3.24 Report Density Support command 44h
The REPORT DENSITY SUPPORT command provides a means for the initiator to retrieve informa-
tion maintained by the target about the supported densities for the MTU logical unit.
** NOTE **
The support of the REPORT DENSITY SUPPORT command is con-
figuration dependent. In or der for this command t o be supported, FT4
(Feature Mode 4), bit 6 (0x40) must be set to 1. This bit can be s et via
the CHANGE DEFINITION command (VPD page C1h, feature config-
uration byte 4) or via the operator panel, SETTING m enu, option
80:S.FT4 (see Chapter 4 of t he M2488 User’s Guide). If t he REPORT
DENSITY SUPPORT command is received when FT4, bit 6 is set to
0, CHECK CONDITION status is generated. The sense key is set to
ILLEGAL REQUEST with the additional sense code set to INVALID
CDB OP CODE.
4-3.24.1 REPORT DENSITY SUPPORT CDB Description
REPORT DENSITY SUPPORT is a ten-byte command. The bytes are shown below and described
in Table 4-100. Common fields are described in paragraph 4-3.1 on page 4-4.
BITS
BYTES 7 6 5 4 3 2 1 0
001000100
1Reserved Media
2Reserved
3Reserved
4Reserved
5Reserved
6Reserved
7MSB Allocation Length
8LSB
9Reserved Flag Link
Note: Changeable fields in the CDB are shaded.