HDD Issues?

[swervinc]

Hi. I am currently running Freenas 9.1.1 64-bit and have 2 WD Green 1TB drives in RAID0. (Don't worry, I have multiple backups and nothing majorly important stored just media) After a recent power failure I have had nothing but problems with my system. On boot the file system check kept failing and I couldn't get any further. In the end I wiped everything and started again. Everything worked fine for a while but recently I started to see really slow response times and on boot the file system check fails again. I assume my HDDs need replacing. Would just like to post some stats here to make sure its nothing else causing the problem. Also SMART is giving me offline uncorrectable sector and curent pending sector errors.

Code:

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   139   121   021    Pre-fail  Always       -       6025
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       938
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   196   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   085   085   000    Old_age   Always       -       11399
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       932
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       144
193 Load_Cycle_Count        0x0032   098   098   000    Old_age   Always       -       306533
194 Temperature_Celsius     0x0022   115   086   000    Old_age   Always       -       32
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   192   192   000    Old_age   Always       -       1366
198 Offline_Uncorrectable   0x0030   194   193   000    Old_age   Offline      -       1135
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   190   000    Old_age   Offline      -       2
 
[root@freenas] ~# smartctl -A /dev/ada1
smartctl 6.1 2013-03-16 r3800 [FreeBSD 9.1-STABLE amd64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
 
=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   146   121   021    Pre-fail  Always       -       5666
  4 Start_Stop_Count        0x0032   096   096   000    Old_age   Always       -       4109
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   070   070   000    Old_age   Always       -       22412
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       218
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       133
193 Load_Cycle_Count        0x0032   030   030   000    Old_age   Always       -       512561
194 Temperature_Celsius     0x0022   114   101   000    Old_age   Always       -       33
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       0

Thanks.

 

[joeschmuck]

The first drive listed (ada0) looks to be failing and hopefully is under warranty. Just my opinion here, I'd replace both drives at the same time to hopefully prevent you from doing another replacement within another 3 years.

 

[Dusan]

Just my opinion here, I'd replace both drives at the same time to hopefully prevent you from doing another replacement within another 3 years.

My recommendation is actually the exact opposite. In my opinion it is much better to have a single drive fail now and then than to have several drives fail at the same time (can happen if you get several drives from the same batch).

 

[joeschmuck]

He's running a RAID0, any drive failure is bad and he cannot replace a single drive without rebuilding his pool all over again. Why would you recommend waiting a little longer so if his second drive fails 2 months from now that he'd have to do all this over again? And yes, infant mortality is also possible with new drives and it's a risk we all take but excluding that, I still say replace both drives at once.

Now if this were a RAIDZ1 or Z2, sure, I agree fully with replace the failed drive only but that is not the case here. My advice is specific to this users situation.

 

[Dusan]

Oh, sorry, my mistake. I did not notice the RAID0 information, you are 100% correct in your recommendation.

 

[Yatti420]

Those look like green drives with the load cycle count.. I would also RMA the first if it fails diag.. I always scan my drives for days to try and spearhead the infant mortality issue..

My older SATA2 Green.. The one that didn't fail from media/crazy use with high load cycle count.. I've WDIDLEd my drives to disable that 8second to park feature..

 

[swervinc]

Thanks for your advice. I have removed the dying drive and put my more important data on the single drive for now. It's flying again =D. I intend to maybe get a single WD Red 3TB or something when can afford it. Its all I need. Plus I can't see why running from a single drive cold be any worse than running RAID0.

 

[joeschmuck]

Plus I can't see why running from a single drive cold be any worse than running RAID0.

That is a very true statement. The WD RD 3TB drive is on sale at Newegg for $125 using promo code EMCYTZT4579. This expires today. I'm sure it will go on sale again somewhere else but that is a good price.