LOCATE
The LOCATE command causes the logical position on tape to be set to the value indicated by the Block Address field. The value indicates the total number of records and marks between BOM and the desired logical position. A value of 0 causes the tape to be positioned at BOM.
If the Immediate (Immed) flag is set to 1, then the drive validates the command and waits for any previous command from any server to complete, including any immediate commands that are currently being processed. It also waits for any buffered data to be flushed to tape. It then reports a deferred error for any preceding command or buffered data, if appropriate. If there is no deferred error, the drive reports Good status and initiates the command. If the Immediate (Immed) flag is set to 0, status is not returned until after the command has completed.
Table 13. LOCATE Command
| 7 | 6 | 5 |
| 4 |
| 3 |
| 2 | 1 | 0 |
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0 |
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| Operation Code (2Bh) |
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1 | Logical Unit Number (0) |
| Reserved |
| BT(0) | CP(0) | Immed | ||||
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2 |
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| Reserved |
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3 |
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: |
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| Block Address |
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6 |
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7 |
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| Reserved |
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8 |
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| Partition (0) |
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9 |
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| Control |
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The Block Type (BT) and Change Partition (CP) flags are not supported and should be set to 0. The Partition field is not supported and should be set to 0.
Chapter 2. Command Support 15
