Intel SSDSCKJF180A5 Datenblatt PDF herunterladen (Seite 24)

Intel® Solid-State Drive Pro 2500 Series (M.2)

Product Specification October 2014

24 330902-002

Page

Offset

Description

Equivalent SMART attribute

if applicable

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.

5.5 Software Settings Preservation

Intel® SSD Pro 2500 Series supports the SET FEATURES parameter to enable/disable the preservation of software

settings. The following table lists the software setting that will be preserved across a COMRESET.

Table 19: Preserved Software Settings

Feature

Preserved Settings

Advanced Power Management

Enabled or Disabled

Multiple Mode

Block size from the last set multiple mode

NCQ Streaming commands

processing

WDNC bit and RDNC bit states

Password Attempt Counter

Password Attempt Counter value

Read look-ahead

Enabled or Disabled

Read/Write Stream Error Logs

Log contents

Reverting to defaults mode

Enabled or disabled

Sanitize Device

Whether device is in the Sanitize Frozen state

Security

Current Security state

Standby Timer

Standby Timer setting

Transfer Mode

DMA and UDMA transfer mode settings

Volatile Write Cache

Enabled or Disabled

Write-Read Verify

Write-Read-Verify feature set settings. Device shall not return to factory

default Write-Read-Verify settings after a COMRESET

5.6 DevSleep

Intel® SSD Pro 2500 Series supports the DevSleep feature. DevSleep must be enabled on the device by the

host system through the SET FEATURES command. If DevSleep is enabled by the host, the host must drive

the DevSleep signal to proper assert/de-assert voltage levels according to the SATA specification. Entry into

DevSleep must be preceded by LPM slumber entry by host and device. The Intel SSD Pro 2500 Series also

supports DevSleep_to_ReducedPwrState which allows the host to wake the drive using normal LPM COMWAKE

out-of-band signaling.

For the Intel SSD Pro 2500 Series, the recommended total time to DevSleep for system active state is 6 sec.

The AHCI* controller has 4 parameters used to define proper DevSleep operation between the host and drive.

The following table provides those recommended values for the Intel SSD Pro 2500 Series drive.

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