Gavin Cameron wrote:
Can you try doing smartctl -a on both drives before and after you hear
the noise and see if it seems to match up with any of the counters
changing?
Here's the build up:
sudo smartctl -a /dev/sda > sda_start
sudo smartctl -a /dev/sdb > sdb_start
... a few mins while noises go on ...
sudo smartctl -a /dev/sda > sda_end
sudo smartctl -a /dev/sdb > sdb_end
Here are the results:
diff sda_start sda_end
13c13
< Local Time is: Fri Apr 17 16:03:40 2009 BST
---
> Local Time is: Fri Apr 17 16:17:20 2009 BST
66c66
< 194 Temperature_Celsius 0x0002 253 253 000 Old_age
Always - 17 (Lifetime Min/Max 9/38)
---
> 194 Temperature_Celsius 0x0002 240 240 000 Old_age
Always - 25 (Lifetime Min/Max 9/38)
88a89
>
So nothing there apart from the temperature. However:
diff sdb_start sdb_end
13c13
< Local Time is: Fri Apr 17 16:03:42 2009 BST
---
> Local Time is: Fri Apr 17 16:17:26 2009 BST
57,59c57,59
< 7 Seek_Error_Rate 0x000a 199 199 000 Old_age
Always - 80
< 8 Seek_Time_Performance 0x0027 246 238 187 Pre-fail
Always - 39281
< 9 Power_On_Minutes 0x0032 229 229 000 Old_age
Always - 710h+53m
---
> 7 Seek_Error_Rate 0x000a 199 198 000 Old_age
Always - 43
> 8 Seek_Time_Performance 0x0027 246 238 187 Pre-fail
Always - 45449
> 9 Power_On_Minutes 0x0032 229 229 000 Old_age
Always - 711h+07m
65,66c65,66
< 194 Temperature_Celsius 0x0032 037 253 000 Old_age
Always - 17
< 195 Hardware_ECC_Recovered 0x000a 253 251 000 Old_age
Always - 36907
---
> 194 Temperature_Celsius 0x0032 037 253 000 Old_age
Always - 24
> 195 Hardware_ECC_Recovered 0x000a 253 251 000 Old_age
Always - 31779
70c70
< 199 UDMA_CRC_Error_Count 0x0008 084 001 000 Old_age
Offline - 768
---
> 199 UDMA_CRC_Error_Count 0x0008 100 001 000 Old_age
Offline - 768
72c72
< 201 Soft_Read_Error_Rate 0x000a 253 252 000 Old_age
Always - 0
---
> 201 Soft_Read_Error_Rate 0x000a 253 252 000 Old_age
Always - 2
100a101
>
Looks to me like this drive could well be on its way out! None of the
counters (Start_Stop_Count for example) were changing, but lots of CRC
and error counts are.
What do you think? Just a knackered drive and nothing to do with libata
at all?
Yeah, it's possible that what you're hearing isn't a head unload at all,
but some kind of abnormal recalibration noise, etc.
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