| LOG SELECT | 4Ch |
The Log Select command causes log data on the drive to be reset to its default value or to be set to an initiator specific value.
Illegal Field Reservation Deferred Error Unit Attention
Command descriptor block:
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| 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
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| 0 |
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| Operation | Code (4Ch) |
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| 1 |
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| Reserved (0) |
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| PCR | SP (0) | ||
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| 2 |
| PC |
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| Reserved (0) |
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| 3 |
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| Reserved (0) |
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| 6 |
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| 7 | (MSB) |
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| Parameter List Length |
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| 8 |
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| 9 |
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| Control |
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CDB fields:
The following are valid combinations of values for the PCR (Parameter Code Reset), Parameter List Length and PC (Page Control) fields:
PCR | Parameter List Length | PC | Result |
1 | 0 | 01b or 11b | All the logs on the drive that can be reset are reset to their |
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1 | 0 | 00b or 10b | No action is taken and GOOD status is returned. |
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0 | >0 | 01b or 11b | Data is sent from the host and is written to the indicated |
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| logs, provided those logs are writable. |
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Otherwise CHECK CONDITION status is returned, the sense key is set to ILLEGAL REQUEST with additional sense of 2400h (Invalid Field in CDB).
PCR | 0 | Parameter Code Reset. The function performed is defined by the PC field. |
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SP | 0 | The Save Page (SP) flag is not supported and must be set to 0. |
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Commands
LOG SELECT 4Ch 55