Quantum 10K II - Manual (Page 131)

SCSI Description
5–64 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
MODE SELECT (6) COMMAND (15h) (continued)
5.14.3.2 Unit Attention Condition Page (00h)
The Unit Attention Page is used to enable or disable the generation of Unit Attention
Conditions.
Bit
Byte
7 6 5 4 3 2 1 0
0 PS Rsvd Page Code (00h)
1 Page Length (02h)
2 Reserved DUA Reserved
3 Reserved (00h)
Figure 5–28 Unit Attention Condition Page — Data Format
Table 5–32 Unit Attention Condition Page — Data Format
Default
Field Value Description
PS 1 Parameters Savable. This bit is only used with the MODE SENSE
command. A returned value of 1 indicates that the target is capable
of saving the page in a non-volatile, vendor-specific location. The bit
is reserved with the MODE SELECT command.
DUA 0 Disable Unit Attention. When set to the default value of 0, the drive
reports a CHECK CONDITION for any UNIT ATTENTION condition
(power-on, SCSI bus reset, etc.)
If set to 1, the drive does not report any UNIT ATTENTION conditions.