WD 20EARX 2TB Bad within days

This is just trying to read 5GB off the drive with dd and the drive initially tested ok but shortly after I wondered why I was seeing 2MB/s read speeds.  Notice the "current_pending_sector", anytime I've seen it at anything above 0 even with no other bad fields/attributes, it means the drive is bad.

ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:00:8b:34/01:00:00:00:00/40 tag 0 ncq 131072 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:08:00:8b:34/01:00:00:00:00/40 tag 1 ncq 131072 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:00:8b:34/01:00:00:00:00/40 tag 0 ncq 131072 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:08:00:8b:34/01:00:00:00:00/40 tag 1 ncq 131072 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:00:8b:34/01:00:00:00:00/40 tag 0 ncq 131072 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:08:00:8b:34/01:00:00:00:00/40 tag 1 ncq 131072 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
sd 0:0:0:0: [sda] Unhandled sense code
sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
Descriptor sense data with sense descriptors (in hex):
        72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
        00 34 8b c8
sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
sd 0:0:0:0: [sda] CDB: Read(10): 28 00 00 34 8b 00 00 01 00 00
Buffer I/O error on device sda, logical block 430457
Buffer I/O error on device sda, logical block 430458
Buffer I/O error on device sda, logical block 430459
Buffer I/O error on device sda, logical block 430460
Buffer I/O error on device sda, logical block 430461
Buffer I/O error on device sda, logical block 430462
Buffer I/O error on device sda, logical block 430463
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:08:c8:8b:34/00:00:00:00:00/40 tag 1 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:c8:8b:34/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:08:c8:8b:34/00:00:00:00:00/40 tag 1 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:c8:8b:34/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:08:c8:8b:34/00:00:00:00:00/40 tag 1 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:c8:8b:34/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:08:c8:8b:34/00:00:00:00:00/40 tag 1 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:c8:8b:34/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:08:c8:8b:34/00:00:00:00:00/40 tag 1 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:c8:8b:34/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:08:c8:8b:34/00:00:00:00:00/40 tag 1 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/08:00:c8:8b:34/00:00:00:00:00/40 tag 0 ncq 4096 in
         res 41/40:00:c8:8b:34/00:00:00:00:00/40 Emask 0x409 (media error) <F>
ata1.00: status: { DRDY ERR }
ata1.00: error: { UNC }
ata1.00: configured for UDMA/133
sd 0:0:0:0: [sda] Unhandled sense code
sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
Descriptor sense data with sense descriptors (in hex):
        72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
        00 34 8b c8
sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
sd 0:0:0:0: [sda] CDB: Read(10): 28 00 00 34 8b c8 00 00 08 00
Buffer I/O error on device sda, logical block 430457
ata1: EH complete

smartctl -a /dev/sda
smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-279.el6.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green (Adv. Format)
Device Model:     WDC WD20EARX-008FB0
Serial Number:    WD-WCAZAK523299
LU WWN Device Id: 5 0014ee 25d303568
Firmware Version: 51.0AB51
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Thu May 16 04:36:59 2013 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
                    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:      ( 331) minutes.
Conveyance self-test routine
recommended polling time:      (   5) minutes.
SCT capabilities:            (0x30b5)    SCT Status 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       -       18
  3 Spin_Up_Time            0x0027   100   253   021    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       2
  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       -       685
 10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       2
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       1
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       32
194 Temperature_Celsius     0x0022   123   121   000    Old_age   Always       -       27
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       3
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   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  Extended offline    Interrupted (host reset)      90%       134         -

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.


Tags:

wd, earx, tb, daysthis, gb, dd, initially, ok, mb, speeds, quot, current_pending_sector, ve, fields, attributes, ata, exception, emask, sact, serr, irq_stat, fpdma, queued, cmd, ncq, res, drdy, err, unc, configured, udma, sda, unhandled, hostbyte, did_ok, driverbyte, driver_sense, medium, descriptor, descriptors, hex, unrecovered, auto, reallocate, cdb, buffer, smartctl, dev, _, linux, copyright, allen, http, smartmontools, sourceforge, western, digital, caviar, adv, format, wdc, fb, wcazak, lu, wwn, ee, firmware, ab, user, capacity, bytes, sector, sizes, database, specification, draft, indicated, thu, edt, capability, enabled, offline, suspend, scan, supported, conveyance, selective, capabilities, saves, mode, supports, timer, logging, recommended, polling, extended, sct, feature, revision, vendor, thresholds, attribute_name, thresh, updated, when_failed, raw_value, raw_read_error_rate, spin_up_time, start_stop_count, old_age, reallocated_sector_ct, seek_error_rate, power_on_hours, spin_retry_count, calibration_retry_count, power_cycle_count, off_retract_count, load_cycle_count, temperature_celsius, reallocated_event_count, offline_uncorrectable, udma_crc_error_count, multi_zone_error_rate, errors, logged, num, test_description, remaining, lba_of_first_error, interrupted, reset, span, min_lba, max_lba, current_test_status, not_testing, flags, scanning, selected, spans, remainder, disk, pending, resume,

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