K6602743
Rev.2
02.12.’02
- 65 -
6.3.2.8.12 SMART Read Log Sector [B0h, Sub D5h]
Task
File
Registers
7 6 5 4 3 2 1 0
Command B0h
Cylinder High
C2h
Cylinder Low
4Fh
Device/Head -
X
-
DRV
XX
Sector Number
Log Address
Sector Count
Number of sector to be read
Features
D5h
DRV : Device selection bit
0 : DRV0
1:DRV1
SMART Read Log Sector command returns the indicated log to the host.
Sector number - Indicates the log to be returned as described in following table . The host vendor specific
logs may be used by the host to store any data desired. If a host vendor specific log has never been written
by the host, when read the content of the log shall be zeros. Device vendor specific logs are used by the
device vendor to store any data.
Table 6.12 Log Sector Addresses
Log Sector
Address
Content Sector
Size
Read/Write
00h
SMART Log Directory
1
Read Only
01h
SMART Error Log Sector
1
Read Only
02h – 05h Reserved
0
06h
SMART Self-test Log Sector
1
Read Only
07h - 08h Reserved
0
09h - 0Ah Device vendor specific
96
Read Only, Host shall not use device vendor specific
0Bh - 7Fh Reserved
0
80h - 9Fh Host vendor specific
16
Read/Write
A0h
Device vendor specific
1
Read Only, Host shall not use device vendor specific
A1h – BFh Device vendor specific
1
Read/Write, Host shall not use device vendor specific
C0h – FFh Reserved
0
(1) SMART Log Directory [Log Sector Address = 00h]
The SMART Log Directory is reported size of each log sector address. The following table defines 512 bytes
that make up the SMART Log Directory. The value of the SMART Logging Version word is 01h, the each
log at log sector addresses 80h - 9Fh is defines as 16 sectors long, and the each log at log addresses 09h -
0Ah is defined as 96 sectors long.
Byte Descriptions
0 - 1
SMART Logging Version
2
Number of sectors in the log at log sector address 01h
3 Reserved
: :
510
Number of sectors in the log at log sector address FFh
511 Reserved