WTRE WORM Tamper Read Enable. Controls the behavior of the drive when reading WORM media if it appears that the integrity of the tape has been compromised by tampering. WTRE has no effect on reads of normal
0Default: If no tampering has been detected, data is returned as normal.
If tampering has been detected, no data is returned in response to a READ command or after the position of tamper. CHECK CONDITION is returned with sense key of Medium Error and additional sense of 300Dh (WORM medium— integrity check failed). TapeAlert flag 3Bh (medium
1Data is returned regardless of whether tampering has been detected on the WORM cartridge. The bit should only be set as a last resort where data recovery overrides concerns about WORM integrity.
Rewind on | 00b | A Logical Unit Reset does not alter the logical position. |
Reset | 01b | A Logical Unit Reset will cause the tape to be rewound to BOT. |
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| 10b | A Logical Unit Reset does not alter the logical position. |
| 11b | Reserved |
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Unchangeable parameters:
PS | 0 |
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CAF | 0 | The Change Active Format flag should be zero since changing formats is not |
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| supported. |
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Active Format | 0 | Changing formats is not supported. |
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Active Partition | 0 | Multiple partitions are not supported. |
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Write Buffer Full | 0 | Buffer management is done by the drive. |
Ratio |
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Read Buffer | 0 | Buffer management is done by the drive. |
Empty Ratio |
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DBR | 0 | The Data Buffer Recovery flag should be clear since this feature is not supported. |
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BIS | 1 | The Block Identifiers Supported flag should be set since block identifiers are |
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| supported. |
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Rsmk | 0 | The Report Set Marks flag should be clear since this feature is not supported. |
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AVC | 0 | The Automatic Velocity Control flag should be clear since velocity control is |
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| managed by the drive. |
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SOCF | 0 | The Stop On Consecutive Filemarks flag should be clear since this feature is not |
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| supported. |
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RBO | 0 | The Recover Buffer Order flag should be clear since this feature is not supported. |
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REW | 0 | The Report Early Warning on read flag should be clear since this feature is not |
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| supported. |
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Gap Size | 0 | There is no concept of |
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EOC Defined | 0 |
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82 Commands