Troubleshooting

Troubleshooting & Diagnostics

Diagnostic Information

Online Diagnostics

Most HP systems include online diagnostic utilities for use with SCSI mass storage devices. The following online diagnostics may be available on your system. Refer to your system documentation for information on using online diagnostics.

∙Sherlock Online Diagnostics for SCSI: Used to diagnose all devices.

∙SCSIDSK2: Used to diagnose disk devices.

∙SCSIDDS: Used to diagnose DDS tape devices.

Disk Module Request Sense Information

This section describes the data returned for a disk module when a Request Sense command is invoked.

Table 13. Disk Module Request Sense Data Format

 

 

 

 

 

 

Bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Byte

7

6

5

 

4

 

3

 

2

 

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

0

Valid

 

 

 

 

 

Error Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

Segment Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

FM

EOM

ILI

 

0

 

 

 

 

Sense Key

 

 

 

 

 

 

 

 

 

 

3-6

 

 

Information Bytes (MSB=3; LSB=6)

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

Additional Sense Length

 

 

 

 

 

 

 

 

 

 

 

 

 

8-11

 

 

 

Command-Specific Information

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

Additional Sense Code

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

Additional Sense Code Qualifier

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

FRU Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

SKSV

 

 

 

 

Sense Key Specific

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16-17

 

 

 

 

Sense Key Specific

 

 

 

 

 

 

 

 

 

 

 

 

 

18-n

 

 

 

Product Unique Sense Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

72