| READ POSITION | 34h |
The READ POSITION command returns data representing the current logical position to the host. The position is the count of all marks and blocks between BOM and the current logical position. The first block is block 0.
The command causes no tape movement.
The Read Position command is complimented by the LOCATE command.
Illegal Field | Reservation | Deferred Error |
Unit Attention | Media Access | Diagnostic Status |
Command descriptor block:
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| 7 | 6 | 5 | 4 |
| 3 |
| 2 | 1 | 0 |
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| 0 |
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| Operation | Code (34h) |
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| 1 |
| Reserved(0) |
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| 2 |
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| Reserved (0) |
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| 6 |
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| 7 |
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| Allocation Length |
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| 8 |
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| 9 |
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| Control |
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CDB fields:
Service Action The following values are supported:
00h Short Form Block ID
06h Long Form
08h Extended Form
Allocation Length For Service Actions 00h and 06h, must be 0.
Commands
READ POSITION 34h 127