Hi,
On my Gentoo - Linux I smart tested (offline) my Winchester Digital
drive (SATA)
smartctl 6.1 2013-03-16 r3800 [x86_64-linux-3.14.13-RT] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green (AF)
Device Model: WDC WD10EARS-00Y5B1
Serial Number: WD-WMAV51276611
LU WWN Device Id: 5 0014ee 001f5fb47
Firmware Version: 80.00A80
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Sun Jul 27 14:39:58 2014 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
and got (beside other things) this report:
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 1
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 1
#14 Extended offline Completed: read failure 90% 14484 4288352511
(the #14 is there due to my fruitless experiments - see below)
The offline test immediately stops when hitting the bad sector. 90% of
the disk was never tested.
By the way: I started smartctl as 'smartctl -d sat' as recommended by
'smartctl -d test'.
My partitionlayout is:
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x07ec16a2
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 104447 51200 83 Linux
/dev/sda2 104448 12687359 6291456 82 Linux swap / Solaris
/dev/sda3 12687360 222402559 104857600 83 Linux
/dev/sda4 222402560 1953525167 865561304 5 Extended
/dev/sda5 222404608 232890367 5242880 83 Linux
/dev/sda6 232892416 442607615 104857600 83 Linux
/dev/sda7 442609664 652324863 104857600 83 Linux
/dev/sda8 652326912 862042111 104857600 83 Linux
/dev/sda9 862044160 1071759359 104857600 83 Linux
/dev/sda10 1071761408 1281476607 104857600 83 Linux
/dev/sda11 1281478656 1491193855 104857600 83 Linux
/dev/sda12 1491195904 1953525167 231164632 83 Linux
With
4288352511 / 512 = 8375688 I found that the swap (/dev/sda)
partition has been affected by the bad sector.
I swappoffed the swap (...) and did a
dd if=/dev/zero of=/dev/sda2 bs=512 conv=notrunc
and it fails with an I/O-error at a certain point.
Another offline test shows my, that the bad sector was still there (no
remapping).
To scan the rest of the disk a entered a selectiv selftest.
(one example of my fruitless experimemts...scanninng the very end of
the disk)
smartctl -t selective,1953525100-1953525167 /dev/sda
smartctl 6.1 2013-03-16 r3800 [x86_64-linux-3.14.13-RT] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Selective self-test routine immediately in off-line mode".
SPAN STARTING_LBA ENDING_LBA
0 1953525100 1953525167
Drive command "Execute SMART Selective self-test routine immediately in off-line mode" successful.
Testing has begun.
BUT!: Regardless of what I entered as scan span, it ALWAYS break
with the error that the already found sector cannot be
written/accessed:
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 1953525100 1953525167 Not_testing
SMART Extended Self-test Log Version: 1 (1 sectors)
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Selective offline Completed: read failure 90% 14500 4288352511
I am completly irritated...
IF a selftest stops at the first sector, which cannot be read or
written...and the bad sector is right at the beginning of the scan
area...and any selectiv test will first check that bad sector (as it
seems) and fails than also...how can I monitor my hd in a meaningfull
manner?
Any help is very very appreciated!
Best regards,
mcc
PS: uname -a:
Linux solfire 3.14.13-RT #1 SMP PREEMPT Fri Jul 18 15:53:15 CEST 2014 x86_64 AMD Phenom(tm) II X6 1090T Processor AuthenticAMD GNU/Linux
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