Mode Select Command
100 T10000: Interface Reference Manual August 2016
T10 PI Exponent:
(T10000D)
This field determines the size of each user data field (in bytes)
when T10 PI protected mode is selected.
0h = 1 bytes
1h=2
2h=4
3h=8
4h=16
5h=32
6h=64
7h = 128
8h = 256
9h = 512
Ah = 1,024
Bh = 2,048
Ch = 4,096
Dh = 8,192
Eh = 16,384
Fh = 32,768
T10000D only supports exponent values 9h through Fh.
Parameter Value
TABLE 3-55 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 and
T10000D
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 and
T10000D
F2h Vendor Unique T10 PI
PI appended on each user data field
08h T10000D
F3h - FFh Reserved – –
1. European Computer Manufacturers Association “Data Interchange on 12.7 mm 384-Track magnetic Tape
Cartridges,” ECMA-319 Standard, 2001.
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