Eupator |
10-20-2012 06:15 PM |
External Hard Drive failure
Hi all,
I have an HDD Gear Pro 1TB external HD. It is formatted in ext2. Recently, it has stopped mounting, with this error:
Code:
# mount -t ext2 /dev/sdb1 /media/usb0
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
I ran e2fsck on it, but it complained:
Code:
# e2fsck /dev/sdb1 -y
e2fsck 1.42.6 (21-Sep-2012)
e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sdb1
Could this be a zero-length partition?
So I ran it with an alternate superblock:
Code:
# e2fsck /dev/sdb1 -b 32768 -y
/dev/sdb1 was not cleanly unmounted, check forced.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Free blocks count wrong for group #0 (31223, counted=0).
Fix? yes
( . . . many lines omitted for brevity . . . )
Free inodes count wrong for group #7447 (8192, counted=8189).
Fix? yes
Directories count wrong for group #7447 (0, counted=1).
Fix? yes
Free inodes count wrong (61054965, counted=61000828).
Fix? yes
/dev/sdb1: ***** FILE SYSTEM WAS MODIFIED *****
/dev/sdb1: 54148/61054976 files (1.4% non-contiguous), 130432233/244190000 blocks
I get similar results no matter how many times I run e2fsck, but the drive still won't mount.
Finally, I tried to mount with alternate superblock:
Code:
# mount /dev/sdb1 /media/usb0 -o sb=32768 -t ext2
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
. . . and now I'm not sure where to go. I've read that smartctl is useful in documenting these issues, but I really don't have any idea how, so I'll post the output:
Code:
#smartctl -a /dev/sdb
smartctl 5.43 2012-06-30 r3573 [i686-linux-3.2.29-smp] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Device Model: WL1000GSA3272
Serial Number: WOL240121613
LU WWN Device Id: 5 0014ee 00187638d
Firmware Version: 05.00K05
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Sat Oct 20 19:09:06 2012 EDT
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: (0x84) Offline data collection activity
was suspended by an interrupting command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (18600) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
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: ( 214) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303f) 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 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 229 229 021 Pre-fail Always - 8550
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 315
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 270
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 293
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 204
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 315
194 Temperature_Celsius 0x0022 101 097 000 Old_age Always - 49
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 1
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age 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 Conveyance offline Completed without error 00% 17 -
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.
Any pointers are much appreciated!
|