Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Would you trust this HDD?
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo Chat
View previous topic :: View next topic  
Author Message
schorsch_76
Guru
Guru


Joined: 19 Jun 2012
Posts: 300

PostPosted: Wed Apr 22, 2015 7:01 pm    Post subject: Would you trust this HDD? Reply with quote

Hi,
i just got a new 4 TB harddrive. It is a external drive with USB3 and an additional powersupply. I put on it some backups and other stuff. As i mounted it again, the ext4 filesystem was severly damaged! The superblock reported an size bigger than the HDD.

Code:
EXT4-fs (dm-8): bad geometry: block count 629145600 exceeds size of device (367001600 blocks)


I tried fsck -f, extundelete to recover the data, but i had no luck. No really important data was lost. Just backups whose machines are still up and running...

I tried badblocks on the device "badblocks /dev/sdb" which didnt find any error. I looked at smartctl which said, the device is good. The short test did complete without error.

The only signs which tell me, is that
- "fsck.ext4 -f -b 32768 /dev/sdb1" did fail with read/write errors
- the long offline test did abort
- my first data is lost ... but the device is just about 100h running. The data was lost at 93 hours lifetime.

Here is the smartlog ...

Code:

smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.18.2-slim] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     TOSHIBA MD04ACA400
Serial Number:    74V3K67GFSAA
LU WWN Device Id: 5 000039 5ab805350
Firmware Version: FP2A
User Capacity:    4.000.787.030.016 bytes [4,00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Wed Apr 22 20:56:27 2015 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)   Offline data collection activity
               was completed without error.
               Auto Offline Data Collection: Enabled.
Self-test execution status:      ( 249)   Self-test routine in progress...
               90% of test remaining.
Total time to complete Offline
data collection:       (  120) seconds.
Offline data collection
capabilities:           (0x5b) SMART execute Offline immediate.
               Auto Offline data collection on/off support.
               Suspend Offline collection upon new
               command.
               Offline surface scan supported.
               Self-test supported.
               No Conveyance Self-test supported.
               Selective Self-test supported.
SMART capabilities:            (0x0003)   Saves SMART data before entering
               power-saving mode.
               Supports SMART auto save timer.
Error logging capability:        (0x01)   Error logging supported.
               General Purpose Logging supported.
Short self-test routine
recommended polling time:     (   2) minutes.
Extended self-test routine
recommended polling time:     ( 466) minutes.
SCT capabilities:           (0x003d)   SCT Status supported.
               SCT Error Recovery Control supported.
               SCT Feature Control supported.
               SCT Data Table supported.

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     0x000b   100   100   050    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   100   100   050    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0027   100   100   001    Pre-fail  Always       -       7090
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       92
  5 Reallocated_Sector_Ct   0x0033   100   100   050    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   050    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   100   100   050    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       116
 10 Spin_Retry_Count        0x0033   101   100   030    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       62
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       2
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       58
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       92
194 Temperature_Celsius     0x0022   100   100   000    Old_age   Always       -       40 (Min/Max 17/59)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
220 Disk_Shift              0x0002   100   100   000    Old_age   Always       -       0
222 Loaded_Hours            0x0032   100   100   000    Old_age   Always       -       74
223 Load_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
224 Load_Friction           0x0022   100   100   000    Old_age   Always       -       0
226 Load-in_Time            0x0026   100   100   000    Old_age   Always       -       219
240 Head_Flying_Hours       0x0001   100   100   001    Pre-fail  Offline      -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%       116         -
# 2  Extended offline    Aborted by host               90%       103         -
# 3  Extended offline    Aborted by host               90%        93         -
# 4  Short offline       Completed without error       00%        92         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.


i didn't abort these two Extended offline tests....

Now i reformated the drive and all seems good again, but why did the first partition got damaged? The drive is just sitting near my machine on the table .... Any hints and opinions are welcome! ;)

Thanks
schorsch_76
Back to top
View user's profile Send private message
eccerr0r
Advocate
Advocate


Joined: 01 Jul 2004
Posts: 4606
Location: USA

PostPosted: Wed Apr 22, 2015 7:14 pm    Post subject: Reply with quote

Well according to SMART the disk is fine, but I'd make sure I have a backup of that backup...
With more bytes on a disk, the risk for immense data loss gets higher and higher.

Just being pedantic, you are using GPT partitioning on this, right? And not used it with another system that doesn't understand it?
_________________
Intel Core i7 2700K@ 4.1GHz/HD3000 graphics/8GB DDR3/180GB SSD
What am I supposed to be advocating?
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5926
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Wed Apr 22, 2015 9:04 pm    Post subject: Reply with quote

I wouldn't go near that filesystem without running a badblocks check or using a filesystem which does data checksumming
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.5.2

Hardcore Gentoo Linux user since 2004 :D
Back to top
View user's profile Send private message
schorsch_76
Guru
Guru


Joined: 19 Jun 2012
Posts: 300

PostPosted: Thu Apr 23, 2015 8:38 am    Post subject: Reply with quote

Yes, i use GPT on this HDD. I use ext4 since ages as a filesystem.
Back to top
View user's profile Send private message
madchaz
l33t
l33t


Joined: 01 Jul 2003
Posts: 990
Location: Quebec, Canada

PostPosted: Sun May 17, 2015 7:17 pm    Post subject: Reply with quote

Stupid question, but no one else asked. Did you properly umount the disk before you unplugged it/turned it off?

Not doing that can cause the kind of issues you had.
_________________
Someone asked me once if I suffered from mental illness. I told him I enjoyed every second of it.
www.madchaz.com A small candle of a website. As my lab specs on it.
Back to top
View user's profile Send private message
krinn
Advocate
Advocate


Joined: 02 May 2003
Posts: 4905

PostPosted: Mon May 18, 2015 2:34 am    Post subject: Reply with quote

For HDD my answer is simple: if you start asking, then i won't trust it.
Back to top
View user's profile Send private message
P.Kosunen
Tux's lil' helper
Tux's lil' helper


Joined: 21 Nov 2005
Posts: 95
Location: Finland

PostPosted: Tue May 19, 2015 4:30 pm    Post subject: Reply with quote

Code:
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       2


Have you dropped it?
Back to top
View user's profile Send private message
NeddySeagoon
Administrator
Administrator


Joined: 05 Jul 2003
Posts: 33988
Location: 56N 3W

PostPosted: Tue May 19, 2015 4:53 pm    Post subject: Reply with quote

P.Kosunen,

Thats OK. VALUE and WORST are both > THRESH.
All the smart data is normalised so that provided the above is true, smart passes.

I have had a number of failed drives that pass the smart checks.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Back to top
View user's profile Send private message
P.Kosunen
Tux's lil' helper
Tux's lil' helper


Joined: 21 Nov 2005
Posts: 95
Location: Finland

PostPosted: Wed May 20, 2015 4:35 pm    Post subject: Reply with quote

Raw value two might explain file system damage if drop protection activated in middle of writing. Does it need power cycle to start working again or is it smart enough to continue writing from where it was before protection hit?
Back to top
View user's profile Send private message
NeddySeagoon
Administrator
Administrator


Joined: 05 Jul 2003
Posts: 33988
Location: 56N 3W

PostPosted: Wed May 20, 2015 7:00 pm    Post subject: Reply with quote

P.Kosunen,

Be very careful how you interpret raw values.
They are vendor specific and are often packed fields.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Back to top
View user's profile Send private message
schorsch_76
Guru
Guru


Joined: 19 Jun 2012
Posts: 300

PostPosted: Wed May 27, 2015 1:18 pm    Post subject: Reply with quote

I decided to trust this HDD again but not yet fully ;) I set it up as a member of a RAID1.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo Chat All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum