Quantum DLT 8000 Manual descarregar pdf (Página 357)

100

101

SCSI Commands

Quantum DLT 8000 Tape System 5-213

SEND DIAGNOSTIC Command (1Dh) (continued)

Table 5–96 SEND DIAGNOSTIC Parameter List — Field Descriptions

Field Name Description

Pattern Number Indicates the type of data pattern to be used during the diagnostic

test.

Pattern Name Data in Hex

0h Rotate Rotate through the other 9 patterns;

change for each tape file.

1h All 0s 00 00 00 00 00

2h 2F FF FF FF FF FF

3h Alternating 1s 55 55 55 55 55 55 55 55

and 0s

4h Marching 1 80 40 20 10 08 04 02 01

5h Marching 0 7F BF DF EF F7 BF FD FE

6h MW EE EE EE EE EE EE EE EE

7h MFM B6 DB B6 DB B6 DB B6 DB

8h IF AA AA AA AA AA AA AA AA

9h Random Data

2Fh 10s 101010

3/4Fh 11s 111111

FFh Run BHC Test*

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. Note that

for BHC Test*, the value in this field must be 0.

Block Size This field specifies the size of the blocks to be used. If this field is 0,

random block sizes are used. Note that for BHC Test*, the value in this

field must be 0.

* The BHC feature is provided for use only by a trained service provider.

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