User's Guide
Chapter 3 Emulated DLT7000 SCSI Commands
Send Diagnostic (1Dh)
262 Quantum DX-Series Software Interface Guide
Table 212 SEND 
DIAGNOSTIC 
Parameter List - Field 
Descriptions
Field Name Description
Pattern 
Number
Indicates the type of data pattern to be used during 
the diagnostic tests.
Pattern
0
1
2
3
4
5
6
7
8
9 (default)
Name
Rotate 
All 0s
2F
Alternating 
1s and 0s
Marching 1
Marching 0
MW
MFM
IF
Random 
Data
Data in Hex
Rotate through the 
other 9 patterns; 
change for each 
tape file.
0 0  0 0  0 0  0 0  0 0   
FF FF FF FF FF
55 5A AA A5 55 
5A AA A5 
01 02 03 04 08 10 
20 40 80 
FE FD FB F7 EF 
DF BF 7F 
0E 0E 0E 0E 0E 0E 
0E 0E
DE AD DE AD DE 
AD DE AD
AA AA AA AA 
AA AA AA AA
Maximum 
Number of 
Test Passes
This field specifies the number of test passes of the 
diagnostic to be run. If Maximum Number of Test 
Passes = 0, the test will loop continuously. A BUS 
RESET or a selection from the host sending an 
ABORT or BUS DEVICE RESET message terminates 
testing. Default = 1










