Intel SSDSA2BW120A301 Benutzerhandbuch

Intel

®

 Solid-State Drive 520 Series

Product Specification

February 2012

18

Order Number: 325968-001US

C0h

Power-Off Retract Count (Unsafe Shutdown 

Count)

The raw value of this attribute reports the

cumulative number of unsafe (unclean)

shutdown events over the life of the device.

An unsafe shutdown occurs whenever the

device is powered off without STANDBY

IMMEDIATE being the last command.

1

1

0

0

1

0

0  (none)

E1h

Host Writes

The raw value of this attribute reports the

total number of sectors written by the host

system. The raw value is increased by 1 for

every 65,536 sectors (32MB) written by

the host.

1

1

0

0

1

0

0  (none)

E2h

Timed Workload Media Wear

Measures the wear seen by the SSD (since

reset of the workload timer, attribute E4h),

as a percentage of the maximum rated

cycles.

1

1

0

0

1

0

0  (none)

E3h

Timed Workload Host Read/Write Ratio

Shows the percentage of I/O operations

that are read operations (since reset of the

workload timer, attribute E4h).

1

1

0

0

1

0

0  (none)

E4h

Timed Workload Timer

Measures the elapsed time (number of

minutes since starting this workload timer).

1

1

0

0

1

0

0  (none)

E8h

Available Reserved Space

This attribute reports the number of reserve

blocks remaining. The normalized value

begins at 100 (64h), which corresponds to

100 percent availability of the reserved

space. The threshold value for this attribute

is 10 percent availability.

1

1

0

0

1

1

10

E9h

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

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.

1

1

0

0

1

0

0  (none)

F1h

Total LBAs Written

The raw value of this attribute reports the

total number of sectors written by the host

system. The raw value is increased by 1 for

every 65,536 sectors (32MB) written by

the host.

1

1

0

0

1

0

0  (none)

F2h

Total LBAs Read

The raw value of this attribute reports the

total number of sectors read by the host

system. The raw value is increased by 1 for

every 65,536 sectors (32MB) read by

the host.

1

1

0

0

1

0

0  (none)

F9h

Total NAND Writes

Raw value reports the number of writes to 

NAND in 1 GB increments.

1

1

0

0

1

0

0  (none)