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HP C737990900 User Manual

Page 118

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118 Commands

MPU

Mark Position Unknown

0

The File Number and Set Number fields are valid.

1

Mark position is unknown. If set, then the File Number and Set Number fields are

undefined. This would be set only after a “hard” read error which resulted in the setting

of positioning error sense such as 3B00h (sequential positioning error).

Partition Number

This will always be zero because Ultrium drives do not support multiple partitions.

Block Number

The number of logical blocks between BOP (beginning of partition) and the current logical

position. Filemarks count as one logical block each.

File Number

The number of filemarks between BOP and the current logical position.

Set Number

The number of setmarks between BOP and the current logical position.