Exabyte EXB-8205 Instruções de Operação descarregar pdf (Página 380)

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Accessing Data on a Directory Support Tape

To use the LOCATE command to access the data written in the

previous section, follow these steps:

1. Read the master directory to determine the locations of the data

set directories on the tape.

Note: If you are using a LOCATE or SPACE command to

position to data within the master directory, be sure to

set the ADE bit to 1 to prevent the CTS from crossing

from the directory to the data area of the tape.

2. Using the READ POSITION data from the master directory,

issue a LOCATE command to locate a specific data set directory

(for example, DIR 2). Set the ADE bit to 0 so that the CTS will

skip over the first EOD mark.

Read the data set directory to determine what files are contained

in the data set. If this directory does not list the file you want to

locate, continue issuing LOCATE commands and reading

directories until you find the directory listing the file you need.

...

LFM DIR 1DS 1

LBOT

EOD 1

read master

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Exabyte EXB-8205 Instruções de Operação Página 380

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