Sun Oracle Storage Tek T10000, Reference Manual

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E20425-01 • Chapter 4 Commands 129
Mode Sense Command
Parameter Value
LBP_W_R:

Logical Blocks Protected during
Write Reporting
Drive reports a:
• DIV CRC error as a deferred error if in buffered mode
• Current error if in non buffered mode
Note: Bit values 00b and 01b are Ignored.
Value Drive behavior when the validation of write data fails
00b Report a Check Condition using Sense Code of
Current Sense, the sense key set to HARDWARE
ERROR and the additional sense code set to
LOGICAL BLOCK PROTECTION ERROR ON
WRITE.
01b Establish a Check Condition for return on the next
eligible command with the Sense Code set to
Deferred Sense, the sense key set to HARDWARE
ERROR and the additional sense code set to
LOGICAL BLOCK PROTECTION ERROR ON
WRITE.
10b - 11b Reserved
Table 91. Protection Information Method
Method
(Byte 4)
Description Length
(Byte 5)
Drives
Supported
00h Do not use logical block protection. 00h T10000 All
01h Reed-Solomon CRC, See ECMA-319
1
,

CRC appended on any byte boundary
04h T10000C
02h - EFh Reserved – –
F0h Vendor Unique SB-2,

CRC appended on modulo 4 byte boundary
04h T10000A
T10000B
F1h Vendor Unique Intel CRC32C,

CRC appended on any byte boundary
04h T10000C
F2h - FFh Reserved – –
1.European Computer Manufacturers Association “Data Interchange on 12.7 mm 384-Track magnetic Tape
Cartridges,” ECMA-319 Standard, 2001.