Samsung MZMPC128HBFU-00000 Manuale Utente
- 23 -
datasheet
SSD
Rev. 1.0
MZMPC032HBCD-00000
MZMPC064HBDR-00000
MZMPC128HBFU-00000
MZMPC256HBGJ-00000
7.3.2.2 Individual Attribute Data Structure
The following defines the 12 bytes that make up the information for each Attribute entry in the Device Attribute Data Structure.
Attribute ID Numbers: Any nonzero value in the Attribute ID Number indicates an active attribute. The device supports following Attribute ID Numbers.
ID Attribute Name
5 Reallocated Sector Count
9 Power-on Hours
12 Power-on Count
177 Wear Leveling Count
179 Used Reserved Block Count(total)
180 Unused Reserved Block Count(total)
181 Program Fail Count(total)
182 Erase Fail Count(total)
183 Runtime Bad Count (total)
187 Uncorrectable Error Count
190 Airflow Temperature
195 ECC Error Rate
199 CRC Error Count
235 Power Recovery Count
241 Total LBA Written
5 Reallocated Sector Count
9 Power-on Hours
12 Power-on Count
177 Wear Leveling Count
179 Used Reserved Block Count(total)
180 Unused Reserved Block Count(total)
181 Program Fail Count(total)
182 Erase Fail Count(total)
183 Runtime Bad Count (total)
187 Uncorrectable Error Count
190 Airflow Temperature
195 ECC Error Rate
199 CRC Error Count
235 Power Recovery Count
241 Total LBA Written
Byte
Descriptions
0
Attribute ID number 01-FFh
1~2
Status flag
bit 0 (pre-failure/advisory bit)
bit 0 = 0 : If attribute value is less than the threshold, the drive is in advisory condtion.
Product life period may expired.
bit 0 = 1 : If attribut value is less than the threshold, the drive is in pre-failure condition.
The drive may have failure.
bit 1 (on-line data collection bit)
bit 1 = 0 : Attribute value will be changed during off-line data collection operation.
bit 1 = 1 : Attribute value will be changed during normal operation.
bit 2 (Performance Attribute bit)
bit 3 (Error rate Attribute bit)
bit 4 (Event Count Attribute bit)
bit 5 (Self-Preserving Attribute bit)
bit 6-15 Reserved
bit 0 (pre-failure/advisory bit)
bit 0 = 0 : If attribute value is less than the threshold, the drive is in advisory condtion.
Product life period may expired.
bit 0 = 1 : If attribut value is less than the threshold, the drive is in pre-failure condition.
The drive may have failure.
bit 1 (on-line data collection bit)
bit 1 = 0 : Attribute value will be changed during off-line data collection operation.
bit 1 = 1 : Attribute value will be changed during normal operation.
bit 2 (Performance Attribute bit)
bit 3 (Error rate Attribute bit)
bit 4 (Event Count Attribute bit)
bit 5 (Self-Preserving Attribute bit)
bit 6-15 Reserved
3
Attribute value 01h-FDh *1
00h, FEh, FFh = Not in use
01h = Minimum value
64h = Initial value
Fdh = Maximum value
00h, FEh, FFh = Not in use
01h = Minimum value
64h = Initial value
Fdh = Maximum value
4
Worst Ever normalized Attribute Value
(valid values from 01h-FEh)
(valid values from 01h-FEh)
5~10
Raw Attribute Value
Attribute specific raw data
(FFFFFFh - reserved as saturated value)
Attribute specific raw data
(FFFFFFh - reserved as saturated value)
11
Reserved (00h)
*1 For ID = 199 CRC Error Count