Maxtor 10K III manual 170, Report Luns Command Descriptor Block-Data Format, 169

SCSI Description

￿￿￿￿4'2146The REPORT￿.705￿%QOOCPFLUNS command￿￿#￿Jrequests￿that the peripheral device logical unit numbers of known logical units in the target disk be sent to the applications client.

The command only returns information about the logical units to which commands may be sent. The data format and field descriptions are shown in Table 5-169and Table 5-170respectively.

REPORT LUNS Command Descriptor Block-Data Format

$[VG0$KV			￿		￿		￿￿Operation Code￿(A0h)		￿￿	￿
- 5								Reserved
								(MSB)
– 9								Allocation Length
								(LSB)
10								Reserved
11								Control
				REPORT LUNS Command Descriptor Block-Field Description
			If the Allocation Length is not sufficient to contain the logical unit number val-
Allocation(KGNF			ues for all configured logical units,&GUETKRVKQPthe device server still reports as many logical
Length			number values as will fit in the Allocation Length.
Table5			The format of the report of configured logical units is shown in Table 5-171.
			-169
						LUN Reporting Parameter List -Data Format
$0[VG-$3KV		(MSB)			￿￿LUN List￿Length ￿(n – 7)
			￿						￿￿	￿
										(LSB)
4 - 7								Reserved
8 - 15		(MSB)						LUN (first LUN)
										(LSB)
n-7 –							LUN (last LUN, if more than one)
n
Table	5-170

The LUNTableList5-171Length field contains the length in bytes of the LUN list that can be transferred. The LUN list length equals the number of logical unit numbers reported multiplied by eight. If the allocation length in the CDB is too small to allow transfer of information about all of the logical units configured, the LUN list length value is not adjusted to reflect the truncation. The data format for the LUN Reporting Parameter List is described in Table 5-171.

Maxtor Atlas 10K III 5-131