
SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands
81-81200-02 REV A01 January 2005 4-5
parentheses after an item indicate the item’s length in bytes. In some cases, additional length
information is communicated during the DATA phase.
Table 4-4. DATA Phase Command Contents
Command Length in CDB Data Out (To Drive) Data In (From Drive)
ERASE 0 --- ---
INQUIRY Allocation --- Standard Inquiry or a Vital
Product Data page
LOAD UNLOAD 0 --- ---
LOCATE 0 --- ---
LOG SELECT Parameter List
(must be 0)
--- ---
LOG SENSE Allocation --- Log Page
MODE
SELECT (6) / (10)
Parameter List Mode Parameter
Header (4) Block
Descriptor (8)
Page(s)
---
MODE
SENSE (6) / (10)
Allocation --- Mode Parameter
Header (4) Block
Descriptor (8) Page(s)
PERSISTENT
RESERVE IN
Allocation --- Parameter Data
PERSISTENT
RESERVE OUT
Parameter
Length
Parameter List ---
PREVENT ALLOW
MEDIUM
REMOVAL
0--- ---
READ Transfer --- Data
READ BLOCK
LIMITS
0 --- Block Length Limits
READ BUFFER Allocation --- Buffer Offset and
Allocation Length and/
or Test Data
READ POSITION Determined by
Long Bit
--- Position Identifier or
SCSI Logical Address
RECEIVE
DIAGNOSTIC
RESULTS
Allocation --- Diagnostic Page
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