Ultrastar 7K2
HGST Hard Disk Drive
Technical Reference Manual
37
Read Log Sector
There are several logs that can be read with the S.M.A.R.T. Read Log Sector sub-command. The LBA Low
Register indicates the log sector to be returned.
Table 12 Log Address Definition
Log
Address
Log Name
Feature Set R/W Access
00h Log directory ExtLog RO GPL, SL
01h Summary Log SMART RO SL
02h Comprehensive SMART error log SMART RO SL
03h
Extended Comprehensive
SMART error log
ExtLog RO GPL
04h Device Statistics N/A RO GPL, SL
05h Reserved Reserved Reserved
06h SMART self-test log SMART RO SL
07h Extended SMART self-test log ExtLog RO GPL
08h Reserved Reserved Reserved
09H Selective self-test log SMART R/W SL
0Ah-0Fh Reserved N/A Reserved
10h NCQ Command Error NCQ RO GPL
11h SATA PHY Counters ExtLog RO GPL
12h-17h Reserved for Serial ATA N/A Reserved
18h-1Fh Reserved N/A Reserved
20h Obsolete
21h Write Stream Error Log Streaming RO GPL
22h Read Stream Error Log Streaming RO GPL
23h Obsolete
24h-7Fh Reserved N/A Reserved
80h-9Fh Host vendor specific SMART / ExtLog R/W GPL, SL
A0h-BFh Device vendor specific SMART / ExtLog VS GPL, SL
C0h-EFh Reserved Reserved Reserved
E0h SCT Command/Status N/A R/W GPL, SL
E1h SCT Data Transfer GPL, SL
E2h-FFh Reserved Reserved Reserved
RO – Read Only
R/W – Read / Write
SMART – Supported by B0h command code.
ExtLog – Supported by 2Fh/3Fh command
code. VS – Vendor Specific
SCT – SMART Command Transport
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