Hello,
I am trying to figure out which soft read error rate (ECC-corrected bit errors) is "normal" for the drive.
The normalised "soft read error value" is calculated as follows:
10 * LOG (bits read / bit errors), so in the example below:
10 * LOG (2910250 * 512 * 8 / 158120) = 48.77.
I'd just like to know what value other people with the same drive are getting. I read here
http://www.kingston.com/en/ssd/enterprise/best_practices/enterprise_versus_client_ssd that for MLC NAND, the value of the BER should be around 10^(-7). Mine is a 10^(-4.8 ) , so a little above 10^(-5).
So if people who have the same type of drive could kindly post their model and the value of SMART attribute 13. Thank you!!
Here's my complete SMART data for my SSDNow 300 V - SV300S37A/60G:
Code:
SMART READ DATA
Revision: 10
Attributes List
1: (SSD Raw Read Error Rate) Normalized Rate: 100 Sectors Read: 2910250 Read Errors: 0
5: (SSD Retired Block Count) Spare blocks remaining 100% Retired Block 0
9: (SSD Power-On Hours) Value 100 Total 233 hrs 7 mins
12: (SSD Power Cycle Count) Power Cycle Life Remaining 100% Number of power cycles 127
13: (SSD Soft Read Error Rate) Normalized Error Rate 48 Sectors Read 2910250 Soft Read Error Count 158120
100: (SSD GBytes Erased) Gigabytes Erased 269
170: (SSD Number of Remaining Spares) Number of remaining spares 1760
171: (SSD Program Fail Count) Program Error Count 0
172: (SSD Erase Fail Count) Erase Error Count 0
174: (SSD Unexpected power loss count) Unexpected power loss Count 31
177: (Wear Range Delta) Wear Range Delta 0%
181: (Program Fail Count) Program Error Count 0
182: (Erase Fail Count) Erase Error Count 0
184: (SSD End to End Error Detection) Normalized Value 100 IOEDC Error Count 0
187: (SSD Reported Uncorrectable Errors) Normalized Value 100 lifetime URAISE Errors 0
189: (Unrecognized Attribute) Value: 26 Raw Data: 1a 00 35 00 13 00 00
194: (SSD Temperature Monitoring) Normalized temp 26 Current 26 High 53 Low 19
195: (SSD ECC On-the-fly Count) Normalized Value 120 Sectors Read 2910250 UECC Count 0
196: (SSD Reallocation Event Count) Normalized Value 100 Reallocation Event Count 0
198: (SSD Uncorrectable Sector Count) Normalized Value 100 Uncorrectable Sector Count 0
199: (SSD SATA R-Errors Error Count) Normalized Value 200 SATA RError Count 0
201: (SSD Uncorrectable Soft Read Error Rate)Normalized Value 120 Sectors Read 2910250 Uncorrectable Soft Error Count 0
204: (SSD Soft ECC Correction Rate (RAISE) Normalized Value 120 Sectors Read 2910250 Soft ECC Correction Count 0
230: (SSD Life Curve Status) Normalized Value 100
231: (SSD Life Left) Life Remaining 100%
232: (Available Reserved Space) Available Reserved Space 0 (GB)
233: (SSD Internal Reserved) 272
234: (SSD Internal Reserved) 218
241: (SSD Lifetime writes from host) lifetime writes 218
242: (SSD Lifetime reads from host) lifetime reads 264