[CentOS] SSD disk and SMART errors

Miguel Medalha medalist at sapo.pt
Fri Apr 1 23:55:22 UTC 2016


Two days ago I installed a brand new SSDNow E50 series (Enterprise) disk 
on a server. I intend to move the OS there. I just did the physical 
install and copied a few files to and from it just to see if it was OK. 
I left it there, waiting for an opportunity to configure it to do real work.

Now I have looked at it with smartctl -a and it gives me the following info:

   1 Raw_Read_Error_Rate     0x0033   104   104   050    Pre-fail 
Always       -       9127078
   5 Reallocated_Sector_Ct   0x0033   100   100   003    Pre-fail 
Always       -       0
   9 Power_On_Hours          0x0032   100   100   000    Old_age 
Always       -       55 (241 12 0)
  12 Power_Cycle_Count       0x0032   100   100   000    Old_age 
Always       -       7
  13 Read_Soft_Error_Rate    0x0032   104   104   000    Old_age 
Always       -       9127078
100 Unknown_Attribute       0x0032   000   000   000    Old_age 
Always       -       4
170 Unknown_Attribute       0x0032   000   000   000    Old_age 
Always       -       8480
171 Unknown_Attribute       0x000a   100   100   000    Old_age 
Always       -       0
172 Unknown_Attribute       0x0032   100   100   000    Old_age 
Always       -       0
174 Unknown_Attribute       0x0030   000   000   000    Old_age 
Offline      -       6
177 Wear_Leveling_Count     0x0000   000   000   000    Old_age 
Offline      -       0
181 Program_Fail_Cnt_Total  0x000a   100   100   000    Old_age 
Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   000    Old_age 
Always       -       0
184 End-to-End_Error        0x0032   100   100   090    Old_age 
Always       -       0
187 Reported_Uncorrect      0x0012   100   100   000    Old_age 
Always       -       0
194 Temperature_Celsius     0x0022   028   033   000    Old_age 
Always       -       28 (Min/Max 20/33)
195 Hardware_ECC_Recovered  0x001c   120   120   000    Old_age 
Offline      -       9127078
196 Reallocated_Event_Count 0x0033   100   100   003    Pre-fail 
Always       -       0
198 Offline_Uncorrectable   0x0010   120   120   000    Old_age 
Offline      -       75479755259904
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age 
Always       -       0
201 Unknown_SSD_Attribute   0x001c   120   120   000    Old_age 
Offline      -       9127078
204 Soft_ECC_Correction     0x001c   120   120   000    Old_age 
Offline      -       9127078
230 Unknown_SSD_Attribute   0x0013   100   100   000    Pre-fail 
Always       -       0
231 Temperature_Celsius     0x0000   100   100   011    Old_age 
Offline      -       0
232 Available_Reservd_Space 0x0032   000   000   000    Old_age 
Always       -       33
233 Media_Wearout_Indicator 0x0032   000   000   000    Old_age 
Always       -       6
234 Unknown_Attribute       0x0032   000   000   000    Old_age 
Always       -       7
235 Unknown_Attribute       0x0033   100   100   002    Pre-fail 
Always       -       0
241 Total_LBAs_Written      0x0032   000   000   000    Old_age 
Always       -       7
242 Total_LBAs_Read         0x0032   000   000   000    Old_age 
Always       -       5


Just look at the number under "198 Offline_Uncorrectable". Is this 
normal for this type of disk? Is smartctl misinterpreting the disk's 
features? The disk has been there essentially doing nothing and it 
presents such enormous numbers of errors. Why?

This is under CentOS 7 (1511).



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