IBM Ultrastar 36LZX, Specifications

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8.27 REPORT LUN (A0)
LINK FLAG Reserved = 0 VU = 0 11
Reserved 10
(MSB)
Allocation Length
(LSB)
6
|
9
Reserved
1
|
5
Command Code = A0h 0
0 1 2 3 4 5 6 7
Bit
Byte
Figure 138. REPORT LUN (A0)
The Report LUN's command requests that the target return the known Logical Unit Numbers (LUN) to the
initiator. The Report LUN's command should always be available and is unaffected by any reservations.
The Allocation Length must be at least 16 bytes. If the Allocation Length is less than 16 bytes, the target
will return in Check Condition Status with Sense Key of Illegal Request and additional Sense Code of
Invalid Field in CDB. If the Allocation Length is not sufficient to contain the Logical Unit Number values
for all configured logical units, the target shall report as many logical unit number values as will fit in the
specified Allocation Length. This is not considered an error.
The Report LUN's command will send the LUN List in the subsequent Data Out Phase. The format of the
LUN List is shown in the following table.
(MSB) LUN = 0
(LSB)
8
|
15
Reserved
4
|
7
(MSB) LUN List Length = 8
(LSB)
0
|
3
0 1 2 3 4 5 6 7
Bit
Byte
Figure 139. LUN Reporting Parameter List Format
The LUN list length shall contain the length in bytes of the LUN list that is available to be transferred.
This product only supports one LUN. Therefore, the LUN list length must be set to 8. The only supported
LUN is zero.
Ultrastar 36LZX hard disk drive specifications
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