Datasheet

Intel® Solid-State Drive DC S3610 Series
Table 20: SMART Attribute Status Flags
Status Flag Description Value = 0 Value = 1
SP
Self-preserving attribute
Not a self-preserving attribute
Self-preserving attribute
EC
Event count attribute
Not an event count attribute
Event count attribute
ER
Error rate attribute
Not an error rate attribute
Error rate attribute
PE
Performance attribute
Not a performance attribute
Performance attribute
OC Online collection attribute
Collected only during offline
activity
Collected during both offline and
online activity
PW
Pre-fail warranty attribute
Advisory
Pre-fail
5.4.2 Timed Workload Endurance Indicators
Timed Workload Media Wear Indicator — ID E2h
This attribute tracks the drive wear seen by the device during the last wear timer loop, as a
percentage of the maximum rated cycles. The raw value tracks the percentage up to 3 decimal
points. This value should be divided by 1024 to get the percentage.
For example: if the raw value is 4450, the percentage is 4450/1024 = 4.345%. The raw value is held
at FFFFh until the wear timer (attribute E4h) reaches 60 (minutes) after a SMART EXECUTE OFFLINE
IMMEDIATE (B0h/D4h) subcommand 40h to the SSD. The normalized value is always set to 100 and
should be ignored.
Timed Workload Host Reads Percentage — ID E3h
This attribute shows the percentage of I/O operations that are read operations during the last
workload timer loop. The raw value tracks this percentage and is held at FFFFh until the workload
timer (attribute E4h) reaches 60 (minutes). The normalized value is always set to 100 and should be
ignored.
Workload Timer — ID E4h
This attribute is used to measure the time elapsed during the current workload. The attribute is re-
set when a SMART EXECUTE OFFLINE IMMEDIATE (D4h) subcommand 40h is issued to the drive.
The raw value tracks the time in minutes and has a maximum value of 2
32
= 4,294,967,296 minutes
(8,171 years). The normalized value is always set to 100 and should be ignored.
User Notes
• Sending a SMART EXECUTE OFFLINE IMMEDIATE (B0h/D4h) subcommand 40h to the SSD
resets and starts all three attributes (Media Wear Indicator, Attribute E2h, Host Reads
Percentage, Attribute E3h, and the Workload timer, Attribute E4h) to FFFFh.
• The Attribute raw values are held at FFFFh until the Workload timer (Attribute E4h) reaches
a total of 60 (minutes) of power on time. After 60 minutes, the Timed Workload data is
made available.
• After the Workload timer (E4h) reaches 60 (minutes), the Timed Workload data is saved
every minute so only 59 seconds of data is lost if power is removed without receiving ATA
STANDBY IMMEDIATE. Accumulated data is not reset due to power loss.
• Upon power up, the attributes hold a snapshot of their last saved values for 59 seconds
and live data is available after 60 seconds, once the initial one hour interval is completed.
March 2015 Product Specification
331342-003US 23