Справочник Пользователя для Intel SSD 525 90GB SSDMCEAC090B301
Модели
SSDMCEAC090B301
Intel® Solid-State Drive 525 Series
Intel® Solid-State Drive 525 Series
Product Specification
December 2012
18
Order Number: 328354-001US
5.5
Device Statistics
In addition to the SMART attribute structure, statistics pertaining to the operation and health of the
Intel SSD 525 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.
Table 12 lists the Device Statistics supported by the Intel SSD 525 Series.
Table 12.
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
Num Interface CRC Errors
-
0x07 - Solid State Device Statistics
0x08
Percentage Used Endurance Indicator
E9h
This statistic counts up from 0
rather than down from 100, and
may go beyond 100 for drives that
exceed their expected lifetime.
5.6
SMART Command Transport (SCT)
With SMART Command Transport (SCT), a host can send commands and data to an SSD and receive
status and data from an SSD using standard write/read commands to manipulate two SMART Logs:
• Log Address E0h ("SCT Command/Status") — used to send commands and retrieve status
• Log Address E1h ("SCT Data Transfer") — used to transport data
• Log Address E1h ("SCT Data Transfer") — used to transport data
5.7
Data Set Management Command Set
The Intel SSD 525 Series supports the Data Set Management command set Trim attribute, which
consists of:
• DATA SET MANAGEMENT