Latest interface: 0.3.1
Latest system: 010
nicholasa
User

158 posts

Posted on 11 January 2012 @ 13:30
So i have 8 of theese drives in my ZFSGuru box. 2 of them i have allready RMA'd because of "RAW READ ERROR RATE" SMART Error. Now 3 more shows the same errors. One is even so screwed up it fails SMART check upon boot. Hell yeah! No wonder Samsung sold it's hard drive division to Seagate...

I have contacted my supplier. I have lost faith in theese drives. Why didn't i stick with WD?!
With my luck this whole thing goes down the shitter because of the HD crisis...

CiPHER
Developer

1199 posts

Posted on 11 January 2012 @ 13:58
Well Samsung is my favorite brand. And they got bought because they were too innovative, just like Hitachi. So you can say that the two best HDD manufacturers got bought. Samsung and Hitachi also were the first with 1TB platters.

About your smart warnings. Raw Read Error Rate is something mostly misunderstood. Can you provide the real output from ZFSguru?
nicholasa
User

158 posts

Posted on 11 January 2012 @ 23:28
Hi CiPHER,

Here's the readout for the three disks:
Displaying SMART details for disk ada0

# SMART attribute Flag Current Worst Threshold Failed RAW value
1 Raw_Read_Error_Rate 0x002f 001 001 051 FAILING_NOW 46613
2 Throughput_Performance 0x0026 252 252 000 - 0
3 Spin_Up_Time 0x0023 068 068 025 - 9816
4 Start_Stop_Count 0x0032 100 100 000 - 24
5 Reallocated_Sector_Ct 0x0033 252 252 010 - 0
7 Seek_Error_Rate 0x002e 252 252 051 - 0
8 Seek_Time_Performance 0x0024 252 252 015 - 0
9 Power_On_Hours 0x0032 100 100 000 - 2854
10 Spin_Retry_Count 0x0032 252 252 051 - 0
11 Calibration_Retry_Count 0x0032 252 252 000 - 0
12 Power_Cycle_Count 0x0032 100 100 000 - 25
181 Program_Fail_Cnt_Total 0x0022 092 092 000 - 175591547
191 G-Sense_Error_Rate 0x0022 100 100 000 - 1
192 Power-Off_Retract_Count 0x0022 252 252 000 - 0
194 Temperature_Celsius 0x0002 064 064 000 - 27 (Min/Max 21/33)
195 Hardware_ECC_Recovered 0x003a 100 100 000 - 0
196 Reallocated_Event_Count 0x0032 252 252 000 - 0
197 Current_Pending_Sector 0x0032 252 252 000 - 0
198 Offline_Uncorrectable 0x0030 252 252 000 - 0
199 UDMA_CRC_Error_Count 0x0036 200 200 000 - 0
200 Multi_Zone_Error_Rate 0x002a 100 100 000 - 9415
223 Load_Retry_Count 0x0032 252 252 000 - 0
225 Load_Cycle_Count 0x0032 100 100 000 - 25

Displaying SMART details for disk ada2

# SMART attribute Flag Current Worst Threshold Failed RAW value
1 Raw_Read_Error_Rate 0x002f 001 001 051 FAILING_NOW 139958
2 Throughput_Performance 0x0026 252 252 000 - 0
3 Spin_Up_Time 0x0023 067 067 025 - 10078
4 Start_Stop_Count 0x0032 100 100 000 - 105
5 Reallocated_Sector_Ct 0x0033 252 252 010 - 0
7 Seek_Error_Rate 0x002e 252 252 051 - 0
8 Seek_Time_Performance 0x0024 252 252 015 - 0
9 Power_On_Hours 0x0032 100 100 000 - 4804
10 Spin_Retry_Count 0x0032 252 252 051 - 0
11 Calibration_Retry_Count 0x0032 252 252 000 - 0
12 Power_Cycle_Count 0x0032 100 100 000 - 105
181 Program_Fail_Cnt_Total 0x0022 088 088 000 - 278702908
191 G-Sense_Error_Rate 0x0022 100 100 000 - 1
192 Power-Off_Retract_Count 0x0022 252 252 000 - 0
194 Temperature_Celsius 0x0002 064 064 000 - 28 (Min/Max 24/37)
195 Hardware_ECC_Recovered 0x003a 100 100 000 - 0
196 Reallocated_Event_Count 0x0032 252 252 000 - 0
197 Current_Pending_Sector 0x0032 252 252 000 - 0
198 Offline_Uncorrectable 0x0030 252 252 000 - 0
199 UDMA_CRC_Error_Count 0x0036 200 200 000 - 0
200 Multi_Zone_Error_Rate 0x002a 001 001 000 - 33330
223 Load_Retry_Count 0x0032 252 252 000 - 0
225 Load_Cycle_Count 0x0032 100 100 000 - 105

Displaying SMART details for disk ada3

# SMART attribute Flag Current Worst Threshold Failed RAW value
1 Raw_Read_Error_Rate 0x002f 001 001 051 FAILING_NOW 194177
2 Throughput_Performance 0x0026 252 252 000 - 0
3 Spin_Up_Time 0x0023 067 067 025 - 10007
4 Start_Stop_Count 0x0032 100 100 000 - 135
5 Reallocated_Sector_Ct 0x0033 252 252 010 - 0
7 Seek_Error_Rate 0x002e 252 252 051 - 0
8 Seek_Time_Performance 0x0024 252 252 015 - 0
9 Power_On_Hours 0x0032 100 100 000 - 5374
10 Spin_Retry_Count 0x0032 252 252 051 - 0
11 Calibration_Retry_Count 0x0032 100 100 000 - 1
12 Power_Cycle_Count 0x0032 100 100 000 - 136
181 Program_Fail_Cnt_Total 0x0022 087 087 000 - 283746217
191 G-Sense_Error_Rate 0x0022 100 100 000 - 9
192 Power-Off_Retract_Count 0x0022 252 252 000 - 0
194 Temperature_Celsius 0x0002 064 064 000 - 26 (Min/Max 22/36)
195 Hardware_ECC_Recovered 0x003a 100 100 000 - 0
196 Reallocated_Event_Count 0x0032 252 252 000 - 0
197 Current_Pending_Sector 0x0032 252 252 000 - 0
198 Offline_Uncorrectable 0x0030 252 252 000 - 0
199 UDMA_CRC_Error_Count 0x0036 200 200 000 - 0
200 Multi_Zone_Error_Rate 0x002a 001 001 000 - 33108
223 Load_Retry_Count 0x0032 100 100 000 - 1
225 Load_Cycle_Count 0x0032 100 100 000 - 137

With the disk ada0 i have tried moving it to anoter SATA port, switching data cable and power cable.
Jason
Developer

806 posts

Posted on 12 January 2012 @ 16:22
That's the funny thing with statistics. Remember those silly dice games you played years ago and sometimes, luck was on somebodies side. You can have a WD with 2.8% AFR (Annual Failure Rate) or a Samsung with 1,8% and still 4 of your 10 samsungs are dead and none of your ten WDs. You just can't draw any conclusions out of such a small sample size.

Neither can you just assume all three died without a shared root cause. Such as: too high temperatures (unlikely your max says 36), but also: too much vibrations. The high Raw Read Error Rate could be caused by too much vibrations I believe. Do you have the drives tightened with 4 screws?

In either case, you would want to replace these drives.
nicholasa
User

158 posts

Posted on 13 January 2012 @ 03:07
Yes, i have all my drives fastened with 4 screws into trays with rubber dapening.
I have removed the 3 problem drives and created a RAIDZ out of the 5 healthy.

I don't know what i'm gonna do with the 3 news ones i'm gonna get. Maybe i'll get a HBA card and create another RAIZ.
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User

2 posts

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