Quantum EC-LLDAA-YF-B Guide de l'utilisateur télécharger pdf (Page 172)

Event Error Logs (SDLT 600 only)

152 Quantum SuperLoader 3 User’s Guide

Table 21 Hard Read Error/Hard

Write Error Block Descriptor

Table 22 Hard Read Error/Hard

Write Error Field Descriptions

Long Word Byte 03 Byte 02 Byte 01 Byte 00

1Media 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 4 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 4 heads and 10 tracks 5 forward and 5 backwards, there would be

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

equate to 10 physical blocks.

1 2 ... 167 168 169 170 171 172 173 174 175 176 177 ... 209 210

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