Quantum 1200 Series DAT Autochanger Guía de usuario descargar pdf (Pagina 47)

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

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 293 294

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Quantum 1200 Series DAT Autochanger Guía de usuario Pagina 47

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