Quantum 1200 Series DAT Autochanger Guía de usuario descargar pdf (Pagina 95)

SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

81-81200-02 REV A01 January 2005 4-53

4.8.7 TapeAlert Log Page (2Eh)

This page returns results of the SDLT tape drive’s ongoing self-diagnosis, so that the drive’s behavior

can be monitored and high reliability assured. The host typically reads the TapeAlert page from the

drive at the beginning of each READ or WRITE activity, after any fatal errors occur during a READ or

WRITE, at the end of any data cartridge when the READ or WRITE activity continues onto another

data cartridge, and at the end of each READ or WRITE activity. The drive sets or clears the flags when

the failure or corrective action occurs.

Figure 4-27. TapeAlert LOG SENSE Page — Header Format

Bit

Byte

7 6 5 4 3 2 1 0

0 Page Code (2Eh)

1 Reserved

2 – 3

(MSB)

Page Length

(LSB)

Table 4-31. TapeAlert Page LOG SENSE Header — Field Descriptions

Field Name Description

Page Code Echoes the page code specified in the LOG SENSE CDB.

Page Length Specifies the total number of bytes contained in this log page, excluding the

4 bytes that make up the header.

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 293 294

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Quantum 1200 Series DAT Autochanger Guía de usuario Pagina 95