IBM T200F User Manual download pdf (Page 29)

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

76543210

0 Operation Code (2Bh)

1 Logical Unit Number (0) Reserved BT(0) CP(0) Immed

2 Reserved

Block Address

7 Reserved

8 Partition (0)

9 Control

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

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IBM T200F User Manual Page 29