The short health test. i don't believe it is the hard drive that has a problem:
smartctl 6.2 2013-07-26 r3841 [armv5tel-linux-3.10.32] (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 WD20EARS-00MVWB0
Serial Number: WD-WMAZA3127315
LU WWN Device Id: 5 0014ee 65618abfb
Firmware Version: 51.0AB51
User Capacity: 2,000,398,934,016 bytes [2.00 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: Sat Jul 12 19:33:12 2014 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
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 189 189 051 Pre-fail Always - 11078
3 Spin_Up_Time 0x0027 253 173 021 Pre-fail Always - 2266
4 Start_Stop_Count 0x0032 099 099 000 Old_age Always - 1279
5 Reallocated_Sector_Ct 0x0033 190 190 140 Pre-fail Always - 207
7 Seek_Error_Rate 0x002e 200 197 000 Old_age Always - 0
9 Power_On_Hours 0x0032 073 073 000 Old_age Always - 19798
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 - 152
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 80
193 Load_Cycle_Count 0x0032 125 125 000 Old_age Always - 225271
194 Temperature_Celsius 0x0022 112 104 000 Old_age Always - 38
196 Reallocated_Event_Count 0x0032 132 132 000 Old_age Always - 68
197 Current_Pending_Sector 0x0032 197 001 000 Old_age Always - 1014
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 30
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 183 181 000 Old_age Offline - 4605
SMART Error Log Version: 1
ATA Error Count: 48 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 48 occurred at disk power-on lifetime: 19708 hours (821 days + 4 hours)
When the command that caused the error occurred, the device was doing SMART Offline or Self-test.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 00 00 00 00 00
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
e0 00 00 00 00 00 00 00 01:16:52.820 STANDBY IMMEDIATE
Error 47 occurred at disk power-on lifetime: 19667 hours (819 days + 11 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 00 00 00 00 00 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 03 00 00 00 00 00 00 03:22:13.160 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 00 00 03:22:13.149 IDENTIFY DEVICE
Error 46 occurred at disk power-on lifetime: 19667 hours (819 days + 11 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 00 00 00 00 00
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
e0 00 00 00 00 00 00 00 02:51:25.586 STANDBY IMMEDIATE
Error 45 occurred at disk power-on lifetime: 18616 hours (775 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 00 00 00 00 00 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 03 00 00 00 00 00 00 31d+00:49:22.711 SET FEATURES [Set transfer mode]
ec 00 00 00 00 00 00 00 31d+00:49:22.700 IDENTIFY DEVICE
Error 44 occurred at disk power-on lifetime: 18375 hours (765 days + 15 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
04 61 00 00 00 00 00
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
e0 00 00 00 00 00 00 00 20d+23:51:54.018 STANDBY IMMEDIATE
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed: read failure 90% 19797 446166864
# 2 Short offline Completed: read failure 10% 19713 446166864