Quantum EC-LLDAA-YF-B Guía de usuario descargar pdf (Pagina 170)

Event Error Logs (SDLT 600 only)

150 Quantum SuperLoader 3 User’s Guide

Table 19 Hard Read Error/Hard

Write Error Block Descriptor

Table 20 Hard Read /Hard

Write Error Field Descriptions

Long Word Byte 03 Byte 02 Byte 01 Byte 00

1 Media ID

2 Physical Block Number (PBN)

3 Tape Address

4-12

13 Media Type Tape Format

14 Tape Number

15 Retry Count Logical Blk Num

(LBN)

16 Head Wear Hours BRC Head Wear Hours

Field Description

Media ID Random number used to identify tapes

Physical Block Number

(PBN)

Physical block location where the error occurred. There is one physical block

for each read/write head on each track. For example, if there are four

separate heads and 10 tracks, there would be 40 physical blocks on a single

point of that media.

Tape Address Location on tape in inches

Track Number Track number where error occurred

Retry Count Retry count used when reading

Logical Block Number

(LBN)

A block of data on media that includes all physical block associated with all

heads for that single point of media. For example, in the forward direction

if there are four heads and 10 tracks, five forward and five backwards,

there would be two logical blocks going backwards. Yet these two logical

blocks would equate to 10 physical blocks.

1 2 ... 165 166 167 168 169 170 171 172 173 174 175 ... 209 210

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Quantum EC-LLDAA-YF-B Guía de usuario Pagina 170