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®
Intel
Solid-State Drive 320 Series
Table 12.
SMART Attributes (Continued)
ID
CRC Error Count
The total number of encountered SATA
1
C7h
interface cyclic redundancy check (CRC)
errors.
Host Writes
The raw value of this attribute reports the
total number of sectors written by the host
E1h
system. The raw value is increased by 1 for
every 65,536 sectors (32MB) written by
the host.
Timed Workload Media Wear
Measures the wear seen by the SSD (since
E2h
reset of the workload timer, attribute E4h),
as a percentage of the maximum rated
cycles.
Timed Workload Host Read/Write Ratio
Shows the percentage of I/O operations
E3h
that are read operations (since reset of the
workload timer, attribute E4h).
Timed Workload Timer
E4h
Measures the elapsed time (number of
minutes since starting this workload timer).
Available Reserved Space
This attribute reports the number of reserve
blocks remaining. The normalized value
E8h
begins at 100 (64h), which corresponds to
100 percent availability of the reserved
space. The threshold value for this attribute
is 10 percent availability.
Media Wearout Indicator
This attribute reports the number of cycles
the NAND media has undergone. The
normalized value declines linearly from 100
to 1 as the average erase cycle count
E9h
increases from 0 to the maximum rated
cycles.
Once the normalized value reaches 1, the
number will not decrease, although it is likely
that significant additional wear can be put
on the device.
Total LBAs Written
F1h
Counts sectors written by the host.
Total LBAs Read
F2h
Counts sectors read by the host.
Note:
1. B7h and C7h attributes are available with firmware version 4Px10362 and later.
Table 13
Table 13.
SMART Attribute Status Flags
1.
Status Flag
SP
Self-preserving attribute
EC
ER
PE
OC
Online collection attribute
PW
Pre-fail warranty attribute
September 2011
Order Number: 325152-002US
Attribute
defines the SMART Attribute status flags.
Description
Event count attribute
Error rate attribute
Performance attribute
Status Flags
SP
EC
ER
PE
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
Value = 0
Not a self-preserving attribute
Not an event count attribute
Not an error rate attribute
Not a performance attribute
Collected only during offline activity
Advisory
Threshold
OC
PW
1
0
0 (none)
1
0
0 (none)
1
0
0 (none)
1
0
0 (none)
1
0
0 (none)
1
1
10
1
0
0 (none)
1
0
0 (none)
1
0
0 (none)
Value = 1
Self-preserving attribute
Event count attribute
Error rate attribute
Performance attribute
Collected during both offline and
online activity
Pre-fail
®
Intel
Solid-State Drive 320 Series
Product Specification
19
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