Personal computing discussed
Moderators: renee, morphine, Steel
just brew it! wrote:A g-sense error does not mean the drive is failing, it just means that the drive had to abort and retry an operation because of shock or vibration. For mechanical HDDs used in mobile applications this is pretty normal.
Noldor wrote:just brew it! wrote:A g-sense error does not mean the drive is failing, it just means that the drive had to abort and retry an operation because of shock or vibration. For mechanical HDDs used in mobile applications this is pretty normal.
I know that. But is it normal to accumulate several g-sense errors per day
Glorious wrote:https://techreport.com/forums/viewtopic.php?f=5&t=118540
just brew it! wrote:(The way HDDs do the power-off retract is interesting. Since power is going away they can't count on using the normal power rails to move the heads off the platters. There's a fail-safe circuit that turns the spindle motor into a generator, and the kinetic energy of the spinning platters is used to power the head actuator for the few milliseconds it takes to get the heads out of harm's way.)
just brew it! wrote:Unless the laptop is sitting on a sturdy desk and not moved around while it is being used, I would say "probably".
Even loud noises can disrupt the operation of a HDD. A few months ago I saw a YouTube video (can't find it right now) where someone had a real-time plot of recovered disk I/O errors on a rack mount server. Just yelling through the front air intake vents caused a noticeable spike in error rates.
just brew it! wrote:Even loud noises can disrupt the operation of a HDD. A few months ago I saw a YouTube video (can't find it right now) where someone had a real-time plot of recovered disk I/O errors on a rack mount server. Just yelling through the front air intake vents caused a noticeable spike in error rates.
just brew it! wrote:
It won't be conclusive though, since they're all older (probably ranging in age from 2 to 5 years).
Noldor wrote:just brew it! wrote:
It won't be conclusive though, since they're all older (probably ranging in age from 2 to 5 years).
Since SMART also records the number of power on hours, it's easy to calculate the average.
just brew it! wrote:Noldor wrote:just brew it! wrote:
It won't be conclusive though, since they're all older (probably ranging in age from 2 to 5 years).
Since SMART also records the number of power on hours, it's easy to calculate the average.
My point was that they are almost certainly a completely different model than yours, so we probably can't compare them directly.
Noldor wrote:A bit off-topic, but since you mentioned SSDs, is it true that they can lose data if they are not powered on for more than 3 months?
caconym wrote:just brew it! wrote:Even loud noises can disrupt the operation of a HDD. A few months ago I saw a YouTube video (can't find it right now) where someone had a real-time plot of recovered disk I/O errors on a rack mount server. Just yelling through the front air intake vents caused a noticeable spike in error rates.
Dang. I feel bad for yelling at my computers now.
just brew it! wrote:...unless you've got a Samsung 840 EVO with the original factory firmware, in which case after 3 months getting your data back will be reeeeeally sloooooow...
Noldor wrote:just brew it! wrote:...unless you've got a Samsung 840 EVO with the original factory firmware, in which case after 3 months getting your data back will be reeeeeally sloooooow...
Eh? What does that mean?
just brew it! wrote:Noldor wrote:just brew it! wrote:...unless you've got a Samsung 840 EVO with the original factory firmware, in which case after 3 months getting your data back will be reeeeeally sloooooow...
Eh? What does that mean?
http://techreport.com/news/28112/new-84 ... o-firmware
If you don't update the firmware, read speeds can drop by nearly a factor of 10 for older data.
just brew it! wrote:Samsung releasing a clearly broken product, then dragging their feet on a fix, is one of the reasons I am (still) boycotting Samsung. Factor in the Note 7 battery fiasco, and the washing machines that fly apart if the load is unbalanced, and there seems to be a pattern of cutting corners lately.
Waco wrote:If it makes you feel better my NAS is sitting 10 feet away from eight 15" subwoofers. I tried reproducing the "yelling at disks" video while doing a scrub (which peaks out at around 1.8 GB/s) and saw no disturbances even at "annoy your neighbors because their dishes are rattling" levels of output from the subwoofers. Yelling at them didn't hurt either.
Perhaps it's only higher frequencies that cause problems, but it takes more than you'd expect to disturb modern disks. Perhaps random IO latency is far more affected but I didn't bother testing that.
caconym wrote:Eight fifteens! How much is your cover charge and who's your resident DJ?
just brew it! wrote:Noldor wrote:just brew it! wrote:
It won't be conclusive though, since they're all older (probably ranging in age from 2 to 5 years).
Since SMART also records the number of power on hours, it's easy to calculate the average.
My point was that they are almost certainly a completely different model than yours, so we probably can't compare them directly.
Device Model: WDC WD10JPVX-22JC3T0
Serial Number: WD-WX11E83D7344
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 3159
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 59
191 G-Sense_Error_Rate 0x0032 096 096 000 Old_age Always - 4
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 42
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 69
==========
Device Model: WDC WD10JPVX-22JC3T0
Serial Number: WD-WX31E73WVZ75
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 3564
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 42
191 G-Sense_Error_Rate 0x0032 095 095 000 Old_age Always - 5
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 18
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 98
==========
Model Family: Hitachi/HGST Travelstar Z7K500
Device Model: HGST HTS725050A7E630
Serial Number: TF1500WJGHRGAM
User Capacity: 500,107,862,016 bytes [500 GB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0032 073 073 000 Old_age Always - 12130
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 173
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 126
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 983055
193 Load_Cycle_Count 0x0032 083 083 000 Old_age Always - 175406
==========
Device Model: TOSHIBA MK8037GSX
Serial Number: 77TIF4RTS
User Capacity: 80,026,361,856 bytes [80.0 GB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0032 081 081 000 Old_age Always - 7803
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 1362
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 1305
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 5046349
193 Load_Cycle_Count 0x0032 066 066 000 Old_age Always - 342093
==========
Model Family: Hitachi Travelstar 5K250
Device Model: Hitachi HTS542525K9SA00
Serial Number: 080313BB2F00WDCT9J3C
User Capacity: 250,059,350,016 bytes [250 GB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0012 072 072 000 Old_age Always - 12467
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 810
191 G-Sense_Error_Rate 0x000a 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 105
193 Load_Cycle_Count 0x0012 099 099 000 Old_age Always - 10948
==========
Device Model: HGST HTS541010A9E680
Serial Number: JD10001V1HNK6B
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0012 098 098 000 Old_age Always - 1025
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 15
191 G-Sense_Error_Rate 0x000a 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 10
193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 139
==========
Model Family: Toshiba 2.5" HDD MQ01ABD...
Device Model: TOSHIBA MQ01ABD032
Serial Number: 52M6SC63S
User Capacity: 320,072,933,376 bytes [320 GB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0032 090 090 000 Old_age Always - 4228
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 248
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 4
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 16
193 Load_Cycle_Count 0x0032 095 095 000 Old_age Always - 55322
==========
Device Model: HGST HTS541010A9E680
Serial Number: JA1000100E3HGP
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
SMART overall-health self-assessment test result: PASSED
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 202
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 59
191 G-Sense_Error_Rate 0x000a 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 8
193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 351
Noldor wrote:It seems more and more likely that my initial assumption was correct and that laptop drives (WD ones, at least) seems overly sensitive to any kind of movement/shock, no matter how small.
Can anyone else share their experience? Surely, many other people must have (or had) WD laptop drives.