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Chapter 2. Command Support
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1. | For this chapter, a megabyte (MB) is equal to 1 048 576 bytes. | |
2. | Binary numbers are represented by numbers followed by b. Hexadecimal | |
| numbers are represented by | |
| can be assumed to be decimal. |
Table 1. Supported Common Commands
Command Name | Operation | SCSI | SCSI | Page |
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Code | Spec2 | RVC | UAT | NRD | WRP | MFC | DCC | ||||
Class1 | |||||||||||
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ERASE | 19h | M | SSC | 6 | y | y | y | y | y | y | |
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INQUIRY | 12h | M | 7 | - | - | - | - | - | - | ||
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LOAD/UNLOAD | 1Bh | O | SSC | 14 | y | y | - | - | y | y | |
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LOCATE | 2Bh | O | SSC | 15 | y | y | y | - | y | y | |
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LOG SELECT | 4Ch | O | 16 | y | y | - | - | - | y | ||
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LOG SENSE | 4Dh | O | 17 | y | - | - | - | - | - | ||
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MODE SELECT (6) | 15h | M | 26 | y | y | - | - | - | y | ||
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MODE SELECT (10) | 55h | O | 26 | y | y | - | - | - | y | ||
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MODE SENSE (6) | 1Ah | M | 27 | y | y | - | - | - | - | ||
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MODE SENSE (10) | 5Ah | O | 27 | y | y | - | - | - | - | ||
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PERSISTENT | 5Eh | O | 36 | y | y | - | - | - | - | ||
RESERVE IN |
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PERSISTENT | 5Fh | O | 39 | y4 | y | - | - | - | - | ||
RESERVE OUT |
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PREVENT ALLOW | 1Eh | O | 41 | y | y | - | - | - | - | ||
MEDIUM REMOVAL |
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READ | 08h | M | SSC | 42 | y | y | y | - | y | y | |
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READ ATTRIBUTE | 8Ch | O | 43 | y | y | y | - | - | y | ||
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READ BLOCK LIMITS | 05h | M | SSC | 48 | y | y | - | - | - | - | |
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READ BUFFER | 3Ch | O | 49 | y | - | - | - | - | - | ||
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READ POSITION | 34h | M | SSC | 52 | y | y | - | - | - | - | |
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RECEIVE | 1Ch | O | 53 | y | y | - | - | - | - | ||
DIAGNOSTIC |
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RESULTS |
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RELEASE UNIT (6) | 17h | M | 54 | - | y | - | - | - | - | ||
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RELEASE UNIT (10) | 57h | M | 54 | - | y | - | - | - | - | ||
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REPORT DENSITY | 44h | M | SSC | 55 | y | y | - | - | - | - | |
SUPPORT |
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REPORT LUNs | A0h | M | SSC | 58 | - | - | - | - | - | - | |
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REQUEST SENSE | 03h | M | 59 | - | - | - | - | - | - | ||
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RESERVE UNIT (6) | 16h | M | 63 | y | y | - | - | - | - | ||
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RESERVE UNIT (10) | 56h | M | 63 | y | y | - | - | - | - | ||
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REWIND | 01h | M | SSC | 64 | y | y | y | - | y | y | |
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SEND DIAGNOSTIC | 1Dh | M | 65 | y | y | y | - | y | y | ||
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SPACE | 11h | M | SSC | 81 | y | y | y | - | y | y | |
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TEST UNIT READY | 00h | M | SSC | 82 | y | y | y | - | - | y | |
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VERIFY | 13h | O | SSC | 82 | y | y | y | - | y | y | |
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WRITE | 0Ah | M | SSC | 83 | y | y | y | y | y | y | |
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© Copyright IBM Corp. 2001, 2000 | 5 |