Quantum 1200 Series DAT Autochanger Guia do Utilizador descarregar pdf (Página 237)

SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

81-81200-02 REV A01 January 2005 4-195

The drive returns the following data as a result of the RECEIVE DIAGNOSTIC RESULTS command.

Use the REQUEST SENSE command to obtain more detailed information following a CHECK

CONDITION status on a SEND DIAGNOSTIC command.

Figure 4-103. RECEIVE DIAGNOSTIC RESULTS — Data Format

This information indicates which of the main components of the SDLT tape drive subsystem may have

failed diagnostic testing. For the Level 1 Electronics test, the first four fields are set to 1 and the second

four fields are set to 0. For the Level 2 Write / Read Functionality test, the first four fields are set to the

defaults of 1, 0, 1, and 0 respectively, and the second four fields are set to the read and write statistics

that the test collected.

Bit

Byte

7 6 5 4 3 2 1 0

Controller Present Flag

Controller Error ASQ

Drive Present Flag

Drive Error ASQ

4 – 7 MB Written

8 – 11 Total Write Errors

12 – 15 MB Read

16 – 19 Total Read Errors

Drive Health Check Status

Media Health Check Status

Notes:

1. Controller and Drive Present Flags: 1 = Present; 0 = Not present.

2. Controller and Drive Error ASQs: 0 = No error; Non-zero = Error.

3. Contains the highest severity TapeAlert flag set against the drive or media.

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Quantum 1200 Series DAT Autochanger Guia do Utilizador Página 237