Datasheet

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.