SCSI Commands: 45BSEND DIAGNOSTIC
Page
205
3.33.1.1.1
Diagnostic Page Format
Byte
Bits
7 6 5 4 3 2 1 0
0
Page Code
1
Reserved
2
(MSB)
3
Page Length (n-3)
(LSB)
4
(MSB)
n
Diagnostic Parameters
(LSB)
3.33.1.1.2
Supported Diagnostic Pages
Page Code
Description
00h
Supported diagnostic pages (RECEIVE DIAGNOSTIC RESULTS only)
80h
Ring Buffer memory test
81h
Parallel Protocol Request diagnostic page (RECEIVE DIAGNOSTIC RESULTS
only – Parallel SCSI drives only.)
Note that the Ring Buffer Memory Test diagnostic page may only be sent when the SEND
DIAGNOSTIC command is using “mode” 5, 6 or 7.
3.33.1.1.3
Memory Test Pattern Diagnostic Page
Byte
Bits
7 6 5 4 3 2 1 0
0
Page Code (80h)
1
Reserved
2
(MSB)
3
4h
(LSB)
4
(MSB)
5
Test Pattern Selection
(LSB)
6
(MSB)
7
Pattern Value
(LSB)
3.33.1.1.4
Memory Test Pattern Page Field Descriptions
Field Bytes
Description
Value 0000h – Select test using incrementing byte on record boundaries
Value 0001h – Select test using incrementing word on record boundaries
Value 0002h – Select test using incrementing word on record boundaries
using start value = Pattern Value
Test Pattern
Selection
4-5
Value 0003h – Select test using random pattern on record boundaries with
seed = Pattern Value
Pattern Value
6-7
Start pattern or seed values of 0 through FFFFh may be used
Summary of Contents for LTO 4
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