Exabyte EXB-8205 Betriebsanleitung PDF herunterladen (Seite 376)

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5. Writethefirstdataset(DS1)tothetape.Whilethedatasetis

being written, issue additional READ POSITION commands as

desired to obtain the locations of individual files, blocks, and so

on contained in the data set.

Note: If you are writing data in 8500c format, remember to

re-enable compression by setting the DCE bit to 1.

Save the data returned for each READ POSITION command; it

will be written later to the data set’s directory (DIR 1).

6. Once the first data set (DS 1) has been written, issue another

READ POSITION command to obtain the starting location for

the first data set’s directory (DIR 1).

Save the information returned for the First Block Location field

(bytes 04 through 07) of the READ POSITION data. This

information will be used later to update the master directory at

the beginning of the tape.

LFMLBOT

2. Issue iterative

READ POSITION

commands

DS 1

1. Write the

data set data

12 MBYTE PAD

3. Store the First

Block Location data

DIRECTORY PAD

2. Store the First

Block Location data

LFMLBOT DS 1

1. Issue a READ

POSITION command

12 MBYTE PADDIRECTORY PAD

May 1994 EXB-8205 and EXB-8505

(Standard and XL)

B-7

Appendix B Directory Support

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