Intel 325152002US User Manual

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Intel
®
 Solid-State Drive 320 Series
Intel
®
 Solid-State Drive 320 Series
Product Specification
September 2011
20
Order Number: 325152-002US
Intel
®
 Solid-State Drive 320 Series
5.4.2
SMART Logs 
The Intel SSD 320 Series implements the following Log Addresses: 00h, 02h, 03h, 06h, 
and 07h.
The Intel SSD 320 Series implements host vendor specific logs (addresses 80h-9Fh) as 
read and write scratchpads, where the default value is zero (0). Intel SSD 320 Series 
does not write any specific values to these logs unless directed by the host through the 
appropriate commands. 
The Intel SSD 320 Series also implements a device vendor specific log at address A9h 
as a read-only log area with a default value of zero (0). 
5.5
Device Statistics
In addition to the SMART attribute structure, statistics pertaining to the operation and 
health of the Intel SSD 320 Series can be reported to the host on request through the 
Device Statistics log as defined in the ATA specification.
The Device Statistics log is a read-only GPL/SMART log located at read log address 
0x04 and is accessible using READ LOG EXT, READ LOG DMA EXT or SMART READ LOG 
commands.
 lists the Device Statistics supported by the Intel SSD 320 Series.
Table 14.
Device Statistics Log
Page 
Offset 
Description 
Equivalent SMART attribute 
if applicable 
0x00 
List of Supported Pages 
0x01 - General Statistics 
0x08 
Power Cycle Count 
0Ch
0x10 Power-On 
Hours 
09h 
0x18 
Logical Sectors Written 
E1h 
0x20 
Num Write Commands - incremented by 
one for every host write command 
0x28 
Logical Sectors Read 
F2h 
0x30 
Num Read Commands - incremented by 
one for every host write command 
0x04 - General Errors Statistics 
0x08 
Num Reported Uncorrectable Errors 
BBh 
0x10 
Num Resets Between Command 
Acceptance and Completion 
0x06 - Transport Statistics 
0x08 
Num Hardware Resets 
0x10 
Num ASR Events 
0x18 
CRC Error Count
0x07 - Solid State Device Statistics 
0x08 
Percentage Used Endurance Indicator 
E9h
Note: This device statistic 
counts up from 0 rather than 
down from 100, and may go 
beyond 100 for drives that 
exceed their expected lifetime.