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slyphnier

SMART Current Pending Sector

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hello everyone

i need help here

i have WD mybook studio 1.5Tb... after today power glitch

CrystalDiskInfo SMART status showing cautions

i see Current Pending Sector value is 7

then i run chkdsk /f /r

step 1 thru 4 didn't give anything wrong

but in step 5, after few % ... its starting to free cluster fixed

the result showing no bad sector

but the SMART status still showing Current Pending Sector

how to fix this ?

should i RMA the drive?

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Hardware and software viewing of bad sectors are two different things. Software can try to remap around the problem spot, but the drive will still have that pending bad sector regardless.

Bad sectors is never really a good thing, and if the drive is under warranty I would try to exchange it.

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Hardware and software viewing of bad sectors are two different things. Software can try to remap around the problem spot, but the drive will still have that pending bad sector regardless.

Bad sectors is never really a good thing, and if the drive is under warranty I would try to exchange it.

is it possible, when power glitch it write error log to SMART

but rather than actual bad sector, it just an error log in SMART status ?

hdd tune showing same SMART status like crystaldiskinfo, but WD DLG SMART showing no current pending sector

(200 200 0)... why this happen ?

i am running DLGdiag extended test which still need 4hours before it completed

yes, exchange the drive should be safest way

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What is the raw SMART data for the drive? If CDM and HDTune are showing something other than 0, then the drive is reporting it regardless of what the WD utility says.

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What is the raw SMART data for the drive? If CDM and HDTune are showing something other than 0, then the drive is reporting it regardless of what the WD utility says.

----------------------------------------------------------------------------

CrystalDiskInfo 3.10.0 © 2008-2010 hiyohiyo

Crystal Dew World : http://crystalmark.info/

----------------------------------------------------------------------------

(4) WDC WD15EARS-00MVWB0

----------------------------------------------------------------------------

Enclosure : WD My Book 1112 USB Device (V=1058, P=1112, sa1)

Model : WDC WD15EARS-00MVWB0

Firmware : 51.0AB51

Serial Number : WD-WCAZA1368622

Disk Size : 1500.3 GB (8.4/137.4/1500.3)

Buffer Size : Unknown

Queue Depth : 32

# of Sectors : 2930277168

Rotation Rate : Unknown

Interface : USB (Serial ATA)

Major Version : ATA8-ACS

Minor Version : ----

Transfer Mode : SATA/150

Power On Hours : 568 hours

Power On Count : 41 count

Temparature : 47 C (116 F)

Health Status : Caution

Features : S.M.A.R.T., AAM, 48bit LBA, NCQ

APM Level : ----

AAM Level : 80FEh [ON]

-- S.M.A.R.T. --------------------------------------------------------------

ID Cur Wor Thr RawValues(6) Attribute Name

01 192 152 _51 0000000001E2 Read Error Rate

03 184 166 _21 00000000168F Spin-Up Time

04 100 100 __0 000000000231 Start/Stop Count

05 200 200 140 000000000000 Reallocated Sectors Count

07 100 253 __0 000000000000 Seek Error Rate

09 100 100 __0 000000000238 Power-On Hours

0A 100 100 __0 000000000000 Spin Retry Count

0B 100 253 __0 000000000000 Recalibration Retries

0C 100 100 __0 000000000029 Power Cycle Count

C0 200 200 __0 00000000000C Power-off Retract Count

C1 199 199 __0 000000000F5B Load/Unload Cycle Count

C2 103 100 __0 00000000002F Temperature

C4 200 200 __0 000000000000 Reallocation Event Count

C5 200 200 __0 000000000007 Current Pending Sector Count

C6 200 200 __0 000000000000 Uncorrectable Sector Count

C7 200 200 __0 000000000000 UltraDMA CRC Error Count

C8 200 200 __0 000000000000 Write Error Rate

-- IDENTIFY_DEVICE ---------------------------------------------------------

+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F

000: 42 7A 3F FF C8 37 00 10 00 00 00 00 00 3F 00 00

010: 00 00 00 00 20 20 20 20 20 57 44 2D 57 43 41 5A

020: 41 31 33 36 38 36 32 32 00 00 00 00 00 32 35 31

030: 2E 30 41 42 35 31 57 44 43 20 57 44 31 35 45 41

040: 52 53 2D 30 30 4D 56 57 42 30 20 20 20 20 20 20

050: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 80 10

060: 00 00 2F 00 40 01 00 00 00 00 00 07 3F FF 00 10

070: 00 3F FC 10 00 FB 01 01 FF FF 0F FF 00 00 00 07

080: 00 03 00 78 00 78 00 78 00 78 00 00 00 00 00 00

090: 00 00 00 00 00 00 00 1F 17 02 00 00 00 44 00 40

0A0: 01 FE 00 00 74 6B 7F 61 41 23 74 69 BE 41 41 23

0B0: 40 7F 00 87 00 87 00 00 FF FE 00 00 80 FE 00 00

0C0: 00 00 00 00 00 00 00 00 7B 30 AE A8 00 00 00 00

0D0: 00 00 00 00 00 00 00 00 50 01 4E E2 AF B4 75 28

0E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 1C

0F0: 40 1C 00 00 00 00 00 00 00 00 00 00 00 00 00 00

100: 00 21 00 00 00 00 00 00 00 00 00 00 00 00 00 00

110: 00 00 00 00 00 00 00 00 00 00 00 00 00 04 00 00

120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

190: 00 00 00 00 00 00 00 00 00 00 00 00 30 35 00 00

1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

1B0: 00 00 00 00 00 00 00 00 00 00 00 00 10 1E 00 00

1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

1D0: 00 00 00 00 00 01 10 00 00 00 00 00 00 00 00 00

1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4B A5

and HDtune

HD Tune Pro: WD My Book 1112 Health

ID Current Worst ThresholdData Status

(01) Raw Read Error Rate 192 152 51 482 ok

(03) Spin Up Time 184 166 21 5775 ok

(04) Start/Stop Count 100 100 0 561 ok

(05) Reallocated Sector Count 200 200 140 0 ok

(07) Seek Error Rate 100 253 0 0 ok

(09) Power On Hours Count 100 100 0 568 ok

(0A) Spin Retry Count 100 100 0 0 ok

(0B) Calibration Retry Count 100 253 0 0 ok

(0C) Power Cycle Count 100 100 0 41 ok

(C0) Unsafe Shutdown Count 200 200 0 12 ok

(C1) Load Cycle Count 199 199 0 3931 ok

(C2) Temperature 103 100 0 47 ok

(C4) Reallocated Event Count 200 200 0 0 ok

(C5) Current Pending Sector 200 200 0 7 warning

(C6) Offline Uncorrectable 200 200 0 0 ok

(C7) Ultra DMA CRC Error Count 200 200 0 0 ok

(C8) Write Error Rate 200 200 0 0 ok

Health Status : warning

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Yea no doubt about that then... bad sectors. Perhaps the WD utility has a threshold before it throws a red flag?

thanks for the help TSullivan

i will exchange the drive right away

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My experience is that in most cases Pending sector count returns to zero and is added to the reallocated sector count. I am not sure when this happens, maybe after the sector is moved or verified as good/bad.

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My experience is that in most cases Pending sector count returns to zero and is added to the reallocated sector count. I am not sure when this happens, maybe after the sector is moved or verified as good/bad.

its seem either hardware problem or smart logging error when power glitch

the result from chkdsk :

99% 完了 (299551203/299600539 の空きクラスターが処理されました)

99% 完了 (299569203/299600539 の空きクラスターが処理されました)

99% 完了 (299587203/299600539 の空きクラスターが処理されました)

299600539 個の空きクラスターが処理されました。

空き領域の検査が終了しました。

ファイル システムのチェックが終了しました。問題は見つかりませんでした。

1464449023 KB : 全ディスク領域

265913828 KB : 15703 個のファイル

6008 KB : 476 個のインデックス

0 KB : 不良セクター

127027 KB : システムで使用中

65536 KB : ログ ファイルが使用

1198402160 KB : 使用可能領域

4096 バイト : アロケーション ユニット サイズ

366112255 個 : 全アロケーション ユニット

299600540 個 : 利用可能アロケーション ユニット

*sorry for japanese text, i am using win7 jp

it said 0kb of bad sector

WD diag extended test also giving clean result

i haven't try wipe the drive and reformat it to see if fix the issue

as i need to backup the data in that drive first (going to do it today)

i contacted WD support, they said try new firmware + smartware (which i did always using their latest firmware+smartware)

if still getting problem, request for replacement or RMA

guess to be safe i will just backup and ask for replacement, but if they giving refurb drive, i might try reformat first and see if the drive really faulty or not, i always not confident with refurb product

Edited by slyphnier

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hello

i have new question here

few days ago i took the drive the shop for exchange

the shop then tell me because it need to RMA it and it will take around 2weeks possible more depends on situations

because i cant get instant exchange, i think over and try reformatting the drive first

currently it still formatting still around 25%

but when i check crystal disk... the Current Pending Sector disappear

the drive turn back to healthy state

here the data from crystaldisk info :

----------------------------------------------------------------------------

(4) WDC WD15EARS-00MVWB0

----------------------------------------------------------------------------

Enclosure : WD My Book 1112 USB Device (V=1058, P=1112, sa1)

Model : WDC WD15EARS-00MVWB0

Firmware : 51.0AB51

Serial Number : WD-WCAZA1368622

Disk Size : 1500.3 GB (8.4/137.4/1500.3)

Buffer Size : Unknown

Queue Depth : 32

# of Sectors : 2930277168

Rotation Rate : Unknown

Interface : USB (Serial ATA)

Major Version : ATA8-ACS

Minor Version : ----

Transfer Mode : SATA/150

Power On Hours : 668 hours

Power On Count : 44 count

Temparature : 46 C (114 F)

Health Status : Good

Features : S.M.A.R.T., AAM, 48bit LBA, NCQ

APM Level : ----

AAM Level : 80FEh [ON]

-- S.M.A.R.T. --------------------------------------------------------------

ID Cur Wor Thr RawValues(6) Attribute Name

01 194 152 _51 0000000001E2 Read Error Rate

03 169 166 _21 00000000197D Spin-Up Time

04 100 100 __0 000000000284 Start/Stop Count

05 200 200 140 000000000000 Reallocated Sectors Count

07 200 200 __0 000000000000 Seek Error Rate

09 100 100 __0 00000000029C Power-On Hours

0A 100 100 __0 000000000000 Spin Retry Count

0B 100 253 __0 000000000000 Recalibration Retries

0C 100 100 __0 00000000002C Power Cycle Count

C0 200 200 __0 00000000000C Power-off Retract Count

C1 199 199 __0 0000000012DA Load/Unload Cycle Count

C2 104 100 __0 00000000002E Temperature

C4 200 200 __0 000000000000 Reallocation Event Count

C5 200 200 __0 000000000000 Current Pending Sector Count

C6 200 200 __0 000000000000 Uncorrectable Sector Count

C7 200 200 __0 000000000000 UltraDMA CRC Error Count

C8 200 200 __0 000000000000 Write Error Rate

do that means the drive success in reallocation badsector ?

or the last uncorrected sector count just because power-outage/glitch happen ?

as the drive in healthy condition i don't think i can RMA the drive, without showing some issue

also is there possibility firmware manipulate SMART data ?

ie. reallocation = 0 in smart status or resetting smart status

well if nothing wrong with the drive then its all good,

i just paranoid as i use the drive for backup

so i hope anyone can give some info or someway to make sure the drive really in good condition

thanks in advance

PS: as this still formating... i will update if there any changes when the format complete

Edited by slyphnier

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hello

i have new question here

do that means the drive success in reallocation badsector ?

or the last uncorrected sector count just because power-outage/glitch happen ?

as the drive in healthy condition i don't think i can RMA the drive, without showing some issue

Could be it has bee reallocated. I had similar problems, i used spinrite v6.0 to completely fix the problem http://vbtechsupport.com/95/ and it in action at http://vbtechsupport.com/232/ - miracle product as i thought I would have to reformat the disk without ability to make a proper backup.

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if reallocatted then it should showing in SMART status right ?

the formating finish few hours ago

and the result like in my previous post

it showing 0 reallocation and pending sector

----------------------------------------------------------------------------

(4) WDC WD15EARS-00MVWB0

----------------------------------------------------------------------------

Enclosure : WD My Book 1112 USB Device (V=1058, P=1112, sa1)

Model : WDC WD15EARS-00MVWB0

Firmware : 51.0AB51

Serial Number : WD-WCAZA1368622

Disk Size : 1500.3 GB (8.4/137.4/1500.3)

Buffer Size : Unknown

Queue Depth : 32

# of Sectors : 2930277168

Rotation Rate : Unknown

Interface : USB (Serial ATA)

Major Version : ATA8-ACS

Minor Version : ----

Transfer Mode : SATA/150

Power On Hours : 685 hours

Power On Count : 44 count

Temparature : 41 C (105 F)

Health Status : Good

Features : S.M.A.R.T., AAM, 48bit LBA, NCQ

APM Level : ----

AAM Level : 80FEh [ON]

-- S.M.A.R.T. --------------------------------------------------------------

ID Cur Wor Thr RawValues(6) Attribute Name

01 194 152 _51 0000000001E2 Read Error Rate

03 173 166 _21 0000000018AC Spin-Up Time

04 100 100 __0 000000000286 Start/Stop Count

05 200 200 140 000000000000 Reallocated Sectors Count

07 200 200 __0 000000000000 Seek Error Rate

09 100 100 __0 0000000002AD Power-On Hours

0A 100 100 __0 000000000000 Spin Retry Count

0B 100 253 __0 000000000000 Recalibration Retries

0C 100 100 __0 00000000002C Power Cycle Count

C0 200 200 __0 00000000000C Power-off Retract Count

C1 199 199 __0 0000000012ED Load/Unload Cycle Count

C2 109 100 __0 000000000029 Temperature

C4 200 200 __0 000000000000 Reallocation Event Count

C5 200 200 __0 000000000000 Current Pending Sector Count

C6 200 200 __0 000000000000 Uncorrectable Sector Count

C7 200 200 __0 000000000000 UltraDMA CRC Error Count

C8 200 200 __0 000000000000 Write Error Rate

anyone can add more information here?

thanks in advance

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Current pending sector count doesn't mean anything other than that an error has been occurred when reading a sector. The sector will remaind "pending" as long as it's been verified to be working or bad, so basically you want to write data over that sector, in which case two things can happen:

1) the sector is not writable, and will be marked as bad sector, removing the pending status, OR

2) the sector is writable, and only pending status will be removed.

Usually unconditional format should test the sector properly, likewise writing anything over it. So you can choose which method to use, I'd just fill up the partition that has that pending sector and see if the pending sector goes away or is marked as bad sector. There are some programs that also "wipe" data from your harddrive by filling it with zeros usually.

NOTE: Windows chkdsk with recovery options (or with surface scan) is not able to "fix" pending sector, so do not use it for other than finding the partition the pending sector is located on.

When can pending sectors be generated? Well the first option is physical damage on the disk's surface. If that's not it, then they can appear when your computer crashes, you do a hard-reset (reset switch) or when the computer loses power suddenly.

Edited by Renzo

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