Seagate Ultra160 Product Manual page 214

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d. If the initiator attempts to send a value for a changeable parameter that is outside the range supported by
the target and rounding is not implemented for that parameter (see note [7] of Table 145).
e. If the initiator sends a page descriptor with an unsupported page code value and the Strict mode is enabled
(see note [8] of Table 145).
If the initiator sends a value for a changeable parameter that is outside the range supported by the target and
rounding is implemented for that parameter, the target shall either:
a. round the parameter to an acceptable value and, if Round is one, terminate the command as described in
Section 7.8, or
b. round the parameter to an acceptable value and, if Round equals zero, terminate the command as if an
acceptable value had been sent from the initiator.
A SCSI target port may alter any mode parameter in any mode page (even parameters reported as non-
changeable) as a result of changes to other mode parameters.
Table 140: MODE SELECT (10) parameter list
Bit 7
Byte
0
0,1
0
2
0
3,4,5
6,7 BLOCK DESCRIPTOR LENGTH (after 0 or 8 decimal) [2]
0
0
0
1
0
2
0
3
4 0
5 BLOCK LENGTH (MSB) [5]
6 BLOCK LENGTH [5]
7 BLOCK LENGTH (LSB) [5]
0-n MODE SELECT PAGE HEADERS AND THEIR PARAMETERS (Tables 137 and 138)
[1] The MEDIUM TYPE field shall be 00h to define the default type direct access device.
[2] The BLOCK DESCRIPTOR LENGTH specifies the length in bytes of the Block Descriptor. It is equal to
the number of bytes in the Block Descriptor (either 0 or 8) and does not include the page headers and
mode parameters. A BLOCK DESCRIPTOR LENGTH of zero indicates that no block descriptors shall be
included in the parameter list. This condition shall not be considered an error.
[3] a. For drives that do not support capacity programming, the DENSITY CODE shall be 00h to define the
default density of medium.
6 5
0 0
0 0
MEDIUM TYPE [1]
0 0
Block Descriptor Data
0 0
DENSITY CODE [3]
0 0
NUMBER OF BLOCKS (MSB) [3] [4]
0 0
NUMBER OF BLOCKS [4]
0 0
NUMBER OF BLOCKS (LSB) [4]
0 0
Parameter Information [6]
SCSI Interface Product Manual, Rev. B
4 3
0 0
Reserved
0 0
0 0
Reserved
0 0
0 0
0 0
0 0
0 0
2 1
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0
0
0
0
0
0
0
0
0