A dying very old HDD confirmed?

Hello all.

I just got this e-mails and checked the logs this morning on my
Linux/Debian machine:

Date: Sat, 19 Apr 2014 07:25:40 -0700
From: root root@MyLinuxBox
To: root@MyLinuxBox
Subject: SMART error (CurrentPendingSector) detected on host: MyLinuxBox

This email was generated by the smartd daemon running on:

host name: MyLinuxBox
DNS domain: [Unknown]
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/sda [SAT], 1 Currently unreadable (pending) sectors


For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
Another email message will be sent in 24 hours if the problem persists.

--

Date: Sat, 19 Apr 2014 07:25:40 -0700
From: root root@MyLinuxBox
To: root@MyLinuxBox
Subject: SMART error (OfflineUncorrectableSector) detected on host:
MyLinuxBox

This email was generated by the smartd daemon running on:

host name: MyLinuxBox
DNS domain: [Unknown]
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/sda [SAT], 1 Offline uncorrectable sectors


For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
Another email message will be sent in 24 hours if the problem persists.

--

# smartctl -A /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 057 053 006 Pre-fail
Always - 22017802
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
Always - 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
Always - 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
Always - 928772918
9 Power_On_Hours 0x0032 019 019 000 Old_age
Always - 71035
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
Always - 362
194 Temperature_Celsius 0x0022 038 053 000 Old_age Always
- 38
195 Hardware_ECC_Recovered 0x001a 057 053 000 Old_age Always
- 22017802
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always
- 1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
Offline - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always
- 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
Offline - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always
- 0

--

# cat /var/log/syslog
Apr 19 06:35:01 MyLinuxBox /USR/SBIN/CRON[10875]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 06:45:01 MyLinuxBox /USR/SBIN/CRON[11849]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 06:55:01 MyLinuxBox /USR/SBIN/CRON[12792]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:05:01 MyLinuxBox /USR/SBIN/CRON[13691]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:15:01 MyLinuxBox /USR/SBIN/CRON[14565]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:17:01 MyLinuxBox /USR/SBIN/CRON[14739]: (root) CMD ( cd / &&
run-parts --report /etc/cron.hourly)
Apr 19 07:25:01 MyLinuxBox /USR/SBIN/CRON[15426]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Sending warning via
/usr/share/smartmontools/smartd-runner to root ...
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Warning via
/usr/share/smartmontools/smartd-runner to root: successful
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Sending warning via
/usr/share/smartmontools/smartd-runner to root ...
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Warning via
/usr/share/smartmontools/smartd-runner to root: successful
Apr 19 07:25:40 MyLinuxBox smartd[3594]: Device: /dev/sdb [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 34 to 33
Apr 19 07:35:01 MyLinuxBox /USR/SBIN/CRON[16291]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:45:01 MyLinuxBox /USR/SBIN/CRON[17090]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:55:01 MyLinuxBox /USR/SBIN/CRON[17862]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 07:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 07:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 07:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 39 to 38
Apr 19 08:05:01 MyLinuxBox /USR/SBIN/CRON[18647]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 08:15:01 MyLinuxBox /USR/SBIN/CRON[19415]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 08:17:01 MyLinuxBox /USR/SBIN/CRON[19569]: (root) CMD ( cd / &&
run-parts --report /etc/cron.hourly)
Apr 19 08:25:01 MyLinuxBox /USR/SBIN/CRON[20175]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 08:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 08:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 08:35:01 MyLinuxBox /USR/SBIN/CRON[20925]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 08:45:01 MyLinuxBox /USR/SBIN/CRON[21667]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 08:55:01 MyLinuxBox /USR/SBIN/CRON[22369]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 08:55:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 08:55:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 09:05:01 MyLinuxBox /USR/SBIN/CRON[23037]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:15:01 MyLinuxBox /USR/SBIN/CRON[23703]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:17:01 MyLinuxBox /USR/SBIN/CRON[23834]: (root) CMD ( cd / &&
run-parts --report /etc/cron.hourly)
Apr 19 09:25:01 MyLinuxBox /USR/SBIN/CRON[24350]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 09:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 09:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 38 to 39
Apr 19 09:35:01 MyLinuxBox /USR/SBIN/CRON[24983]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)

--

# smartctl --test=long /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately
in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in
off-line mode" successful.
Testing has begun.
Please wait 58 minutes for test to complete.
Test will complete after Sat Apr 19 10:40:00 2014

Use smartctl -X to abort test.

[To be continued... I will post its long test results later.]


FYI, this HDD is my Seagate Barracuda 7200.7 (ST380011A; 7200 RPM; 80
GB) HDD for storage/backup/secondary. I think that's the IDE one IIRC.
My detailed specifications of the machine: Intel Core 2 Q8200
(quad-core; default clock speeds; Socket 775 LGA) with a Scythe Andy
Master 120mm CPU cooler (SCASM-1000), Antec Sonata Proto mid tower ATX
case with two case 120mm case fans, MSI P43 NEO3-F (MSI-7514)
motherboard (latest BIOS), two 1 GB of Crucial RAM (Samsung DDR2 800
(PC2-6400; 400 MHz), EVGA NVIDIA GeForce 8800 GT PCIE video card (512 MB
of VRAM), onboard RealTek RTL8168C(P)/8111C(P) PCI-E Gigabit Ethernet
and RealTek audio, 600 watts SeaSonic S12 PSU, ASUS TV
Tuner Card 880 NTSC (cx23880), Pioneer CD/DVD Burner Black SATA Model
DVR-218LBK LabelFlash Support, 3.5" disk drive, Corsair Force Series
F115 Solid-State Disk (SSD) (115 GB; CSSD-F115GB2-BRKT-A), Seagate
Barracuda 7200.7 (ST380011A; 7200 RPM; 80 GB) HDD for
storage/backup/secondary, USB+memory card reader front panel, and an
Intel InBusiness 10/100 (82559) NIC (not connected). Running 64-bit
Debian (Linux; stable; kernel v3.2... x86_64).

Thank you in advance.
--
"Jesus lives!"
/\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site)
/ /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net
| |o o| |
\ _ / If crediting, then use Ant nickname and AQFL URL/link.
( ) If e-mailing, then axe ANT from its address if needed.
Ant is currently not listening to any songs on this computer.

I ran smartctl's long test and waited about an hour.

I got this e-mail in the beginning of the test:

Date: Sat, 19 Apr 2014 09:55:41 -0700
From: root root@MyLinuxBox
To: root@MyLinuxBox
Subject: SMART error (SelfTest) detected on host: MyLinuxBox

This email was generated by the smartd daemon running on:

host name: MyLinuxBox
DNS domain: [Unknown]
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/sda [SAT], Self-Test Log error count increased from 0 to 1

For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
Another email message will be sent in 24 hours if the problem persists.

--

After an hour to finish its long test, I checked:

From /var/log/syslog:
....
Apr 19 09:45:01 MyLinuxBox /USR/SBIN/CRON[25663]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:55:01 MyLinuxBox /USR/SBIN/CRON[26267]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 57 to 56
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 195 Hardware_ECC_Recovered changed from 57 to 56
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT],
previous self-test completed with error (read test element)
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT],
Self-Test Log error count increased from 0 to 1
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Sending warning via
/usr/share/smartmontools/smartd-runner to root ...
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Warning via
/usr/share/smartmontools/smartd-runner to root: successful
Apr 19 10:05:01 MyLinuxBox /USR/SBIN/CRON[26877]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:15:01 MyLinuxBox /USR/SBIN/CRON[27449]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:17:01 MyLinuxBox /USR/SBIN/CRON[27560]: (root) CMD ( cd / &&
run-parts --report /etc/cron.hourly)
Apr 19 10:25:01 MyLinuxBox /USR/SBIN/CRON[27986]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 10:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 10:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 39 to 38
Apr 19 10:35:01 MyLinuxBox /USR/SBIN/CRON[28518]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:45:01 MyLinuxBox /USR/SBIN/CRON[28950]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)

# smartctl -A /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 056 053 006 Pre-fail
Always - 208576601
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
Always - 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
Always - 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
Always - 928963346
9 Power_On_Hours 0x0032 019 019 000 Old_age
Always - 71036
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
Always - 362
194 Temperature_Celsius 0x0022 038 053 000 Old_age Always
- 38
195 Hardware_ECC_Recovered 0x001a 056 053 000 Old_age Always
- 208576601
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always
- 1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
Offline - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always
- 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
Offline - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always
- 0

Those results look bad?
--
"Jesus lives!"
/\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site)
/ /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net
| |o o| |
\ _ / If crediting, then use Ant nickname and AQFL URL/link.
( ) If e-mailing, then axe ANT from its address if needed.
Ant is currently not listening to any songs on this computer.

Oops, I used the wrong parameter to show smartctl results. I also ran
GSmartControl v0.8.6 for its GUI, so I could watch its ETAs and
percentage in real-time. 2/Two more short tests passed twice so far.
2/Two more long tests failed. It looks like it only got to 40% of the
long tests done? Here are the latest results:

# smartctl -a /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.7 and 7200.7 Plus
Device Model: ST380011A
Serial Number: 4JV5P7LN
Firmware Version: 8.01
User Capacity: 80,026,361,856 bytes [80.0 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: ATA/ATAPI-6 T13 1410D revision 2
Local Time is: Sat Apr 19 11:49:59 2014 PDT
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: ( 118) The previous self-test completed
having
the read element of the test
failed.
Total time to complete Offline
data collection: ( 430) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 58) minutes.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 056 053 006 Pre-fail
Always - 150279675
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
Always - 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
Always - 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
Always - 929163443
9 Power_On_Hours 0x0032 019 019 000 Old_age
Always - 71037
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
Always - 362
194 Temperature_Celsius 0x0022 037 053 000 Old_age Always
- 37
195 Hardware_ECC_Recovered 0x001a 056 053 000 Old_age Always
- 150279675
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always
- 1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
Offline - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always
- 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
Offline - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always
- 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 Completed: read failure 60% 5501
67691664
# 2 Short offline Completed without error 00% 5501
-
# 3 Short offline Completed without error 00% 5501
-
# 4 Extended offline Completed: read failure 60% 5501
67691664
# 5 Short offline Completed without error 00% 5501
-
# 6 Extended offline Completed: read failure 60% 5499
67691664
# 7 Extended offline Completed without error 00% 3165
-
# 8 Extended offline Completed without error 00% 48483
-
# 9 Extended offline Completed without error 00% 43207
-
#10 Extended offline Interrupted (host reset) 90% 43201
-
#11 Extended offline Completed without error 00% 39844
-
#12 Extended offline Interrupted (host reset) 20% 38502
-
#13 Extended offline Completed without error 00% 35555
-
#14 Extended offline Completed without error 00% 31886
-
#15 Extended offline Completed without error 00% 22233
-
#16 Extended offline Completed without error 00% 18951
-
#17 Extended offline Completed without error 00% 18674
-
#18 Extended offline Completed without error 00% 15957
-
#19 Extended offline Completed without error 00% 14448
-

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.

/var/log/syslog:
Apr 19 10:55:01 MyLinuxBox /USR/SBIN/CRON[29390]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:55:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 10:55:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 11:05:01 MyLinuxBox /USR/SBIN/CRON[29854]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 11:15:01 MyLinuxBox /USR/SBIN/CRON[30236]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 11:17:01 MyLinuxBox /USR/SBIN/CRON[30313]: (root) CMD ( cd / &&
run-parts --report /etc/cron.hourly)
Apr 19 11:25:01 MyLinuxBox /USR/SBIN/CRON[30635]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Offline uncorrectable sectors
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 56 to 57
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 38 to 36
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 195 Hardware_ECC_Recovered changed from 56 to 57
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT],
previous self-test completed without error
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT],
Self-Test Log error count increased from 1 to 2
Apr 19 11:25:40 MyLinuxBox smartd[3594]: Device: /dev/sdb [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 33 to 31
Apr 19 11:35:01 MyLinuxBox /USR/SBIN/CRON[31022]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 11:45:01 MyLinuxBox /USR/SBIN/CRON[31430]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
--
"Jesus lives!"
/\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site)
/ /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net
| |o o| |
\ _ / If crediting, then use Ant nickname and AQFL URL/link.
( ) If e-mailing, then axe ANT from its address if needed.
Ant is currently not listening to any songs on this computer.

"Ant" wrote in message
m...
Hello all.

I just got this e-mails and checked the logs this morning on my
Linux/Debian machine:

Date: Sat, 19 Apr 2014 07:25:40 -0700
From: root root@MyLinuxBox
To: root@MyLinuxBox
Subject: SMART error (CurrentPendingSector) detected on host: MyLinuxBox

This email was generated by the smartd daemon running on:

host name: MyLinuxBox
DNS domain: [Unknown]
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/sda [SAT], 1 Currently unreadable (pending) sectors


For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
Another email message will be sent in 24 hours if the problem persists.

--

Date: Sat, 19 Apr 2014 07:25:40 -0700
From: root root@MyLinuxBox
To: root@MyLinuxBox
Subject: SMART error (OfflineUncorrectableSector) detected on host:
MyLinuxBox

This email was generated by the smartd daemon running on:

host name: MyLinuxBox
DNS domain: [Unknown]
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/sda [SAT], 1 Offline uncorrectable sectors


For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
Another email message will be sent in 24 hours if the problem persists.

--

# smartctl -A /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED
WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 057 053 006 Pre-fail
- 22017802
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
- 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
- 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
- 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
- 928772918
9 Power_On_Hours 0x0032 019 019 000 Old_age
- 71035
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
- 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
- 362
194 Temperature_Celsius 0x0022 038 053 000 Old_age Always -
38
195 Hardware_ECC_Recovered 0x001a 057 053 000 Old_age Always -
22017802
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always -
1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
ne - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always -
0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
ne - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always -
0

Its certainly got some reallocated sectors and just one each
of offline uncorrectable and pending sectors, but its overstating
it to say that its dying unless those counts keep increasing.

"Ant" wrote in message
m...
I ran smartctl's long test and waited about an hour.

I got this e-mail in the beginning of the test:

Date: Sat, 19 Apr 2014 09:55:41 -0700
From: root root@MyLinuxBox
To: root@MyLinuxBox
Subject: SMART error (SelfTest) detected on host: MyLinuxBox

This email was generated by the smartd daemon running on:

host name: MyLinuxBox
DNS domain: [Unknown]
NIS domain: (none)

The following warning/error was logged by the smartd daemon:

Device: /dev/sda [SAT], Self-Test Log error count increased from 0 to 1

For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
Another email message will be sent in 24 hours if the problem persists.

--

After an hour to finish its long test, I checked:

From /var/log/syslog:
...
Apr 19 09:45:01 MyLinuxBox /USR/SBIN/CRON[25663]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:55:01 MyLinuxBox /USR/SBIN/CRON[26267]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1 Offline
uncorrectable sectors
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 57 to 56
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 195 Hardware_ECC_Recovered changed from 57 to 56
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], previous
self-test completed with error (read test element)
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], Self-Test
Log error count increased from 0 to 1
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Sending warning via
/usr/share/smartmontools/smartd-runner to root ...
Apr 19 09:55:41 MyLinuxBox smartd[3594]: Warning via
/usr/share/smartmontools/smartd-runner to root: successful
Apr 19 10:05:01 MyLinuxBox /USR/SBIN/CRON[26877]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:15:01 MyLinuxBox /USR/SBIN/CRON[27449]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:17:01 MyLinuxBox /USR/SBIN/CRON[27560]: (root) CMD ( cd / &&
run-parts --report /etc/cron.hourly)
Apr 19 10:25:01 MyLinuxBox /USR/SBIN/CRON[27986]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1
Currently unreadable (pending) sectors
Apr 19 10:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], 1 Offline
uncorrectable sectors
Apr 19 10:25:40 MyLinuxBox smartd[3594]: Device: /dev/sda [SAT], SMART
Usage Attribute: 194 Temperature_Celsius changed from 39 to 38
Apr 19 10:35:01 MyLinuxBox /USR/SBIN/CRON[28518]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)
Apr 19 10:45:01 MyLinuxBox /USR/SBIN/CRON[28950]: (root) CMD (command -v
debian-sa1 /dev/null && debian-sa1 1 1)

# smartctl -A /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED
WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 056 053 006 Pre-fail
- 208576601
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
- 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
- 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
- 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
- 928963346
9 Power_On_Hours 0x0032 019 019 000 Old_age
- 71036
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
- 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
- 362
194 Temperature_Celsius 0x0022 038 053 000 Old_age Always -
38
195 Hardware_ECC_Recovered 0x001a 056 053 000 Old_age Always -
208576601
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always -
1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
ne - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always -
0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
ne - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always -
0

Those results look bad?

Not too bad if they don't keep increasing.

On 4/19/2014 1:56 PM PT, Rod Speed typed:
....
Those results look bad?

Not too bad if they don't keep increasing.

Really? Hmm. I will keep my compound eyes on it then. I wonder if
Linux/Debian will keep notifying about them daily like this morning.
Today was the (fir/1)st day. FYI on the latest results:

# smartctl -a /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.7 and 7200.7 Plus
Device Model: ST380011A
Serial Number: 4JV5P7LN
Firmware Version: 8.01
User Capacity: 80,026,361,856 bytes [80.0 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: ATA/ATAPI-6 T13 1410D revision 2
Local Time is: Sat Apr 19 17:30:30 2014 PDT
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: ( 118) The previous self-test completed
having
the read element of the test
failed.
Total time to complete Offline
data collection: ( 430) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 58) minutes.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE
UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 056 053 006 Pre-fail
Always - 117120139
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
Always - 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
Always - 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
Always - 929899528
9 Power_On_Hours 0x0032 019 019 000 Old_age
Always - 71043
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
Always - 362
194 Temperature_Celsius 0x0022 037 053 000 Old_age Always
- 37
195 Hardware_ECC_Recovered 0x001a 056 053 000 Old_age Always
- 117120139
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always
- 1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
Offline - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always
- 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
Offline - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always
- 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 Completed: read failure 60% 5502
67691664
# 2 Extended offline Completed: read failure 60% 5501
67691664
# 3 Short offline Completed without error 00% 5501
-
# 4 Short offline Completed without error 00% 5501
-
# 5 Extended offline Completed: read failure 60% 5501
67691664
# 6 Short offline Completed without error 00% 5501
-
# 7 Extended offline Completed: read failure 60% 5499
67691664
# 8 Extended offline Completed without error 00% 3165
-
# 9 Extended offline Completed without error 00% 48483
-
#10 Extended offline Completed without error 00% 43207
-
#11 Extended offline Interrupted (host reset) 90% 43201
-
#12 Extended offline Completed without error 00% 39844
-
#13 Extended offline Interrupted (host reset) 20% 38502
-
#14 Extended offline Completed without error 00% 35555
-
#15 Extended offline Completed without error 00% 31886
-
#16 Extended offline Completed without error 00% 22233
-
#17 Extended offline Completed without error 00% 18951
-
#18 Extended offline Completed without error 00% 18674
-
#19 Extended offline Completed without error 00% 15957
-
#20 Extended offline Completed without error 00% 14448
-

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.

How come it can't complete the long tests though? It only gets about 40%
done and then fails. Isn't that a bad sign?
--
"Jesus lives!"
/\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site)
/ /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net
| |o o| |
\ _ / If crediting, then use Ant nickname and AQFL URL/link.
( ) If e-mailing, then axe ANT from its address if needed.
Ant is currently not listening to any songs on this computer.

Ant wrote
Rod Speed wrote
Ant wrote

Those results look bad?

Not too bad if they don't keep increasing.

Really?

Yeah, a few reallocated sectors are no big deal on a drive
that old. Some of those older drives don't handle mains
failure that well and can produce a bad sector that way
and then just reallocate that bad sector.

Hmm. I will keep my compound eyes on it then.

I wonder if Linux/Debian will keep notifying about them daily like this
morning.

Dunno, I don't use that much so can't say about that.

Today was the (fir/1)st day. FYI on the latest results:

# smartctl -a /dev/sda
smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.7 and 7200.7 Plus
Device Model: ST380011A
Serial Number: 4JV5P7LN
Firmware Version: 8.01
User Capacity: 80,026,361,856 bytes [80.0 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: ATA/ATAPI-6 T13 1410D revision 2
Local Time is: Sat Apr 19 17:30:30 2014 PDT
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: ( 118) The previous self-test completed
having
the read element of the test
failed.
Total time to complete Offline
data collection: ( 430) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 58) minutes.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED
WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 056 053 006 Pre-fail
- 117120139
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail
- 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age
- 0
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail
- 6
7 Seek_Error_Rate 0x000f 089 060 030 Pre-fail
- 929899528
9 Power_On_Hours 0x0032 019 019 000 Old_age
- 71043
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail
- 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age
- 362
194 Temperature_Celsius 0x0022 037 053 000 Old_age Always -
37
195 Hardware_ECC_Recovered 0x001a 056 053 000 Old_age Always -
117120139
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always -
1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age
ne - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always -
0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age
ne - 0
202 Data_Address_Mark_Errs 0x0032 100 253 000 Old_age Always -
0

That's the same as what you posted yesterday
on the most important bad sector data.

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 Completed: read failure 60% 5502
67691664
# 2 Extended offline Completed: read failure 60% 5501
67691664
# 3 Short offline Completed without error 00% 5501 -
# 4 Short offline Completed without error 00% 5501 -
# 5 Extended offline Completed: read failure 60% 5501
67691664
# 6 Short offline Completed without error 00% 5501 -
# 7 Extended offline Completed: read failure 60% 5499
67691664
# 8 Extended offline Completed without error 00% 3165 -
# 9 Extended offline Completed without error 00% 48483 -
#10 Extended offline Completed without error 00% 43207 -
#11 Extended offline Interrupted (host reset) 90% 43201 -
#12 Extended offline Completed without error 00% 39844 -
#13 Extended offline Interrupted (host reset) 20% 38502 -
#14 Extended offline Completed without error 00% 35555 -
#15 Extended offline Completed without error 00% 31886 -
#16 Extended offline Completed without error 00% 22233 -
#17 Extended offline Completed without error 00% 18951 -
#18 Extended offline Completed without error 00% 18674 -
#19 Extended offline Completed without error 00% 15957 -
#20 Extended offline Completed without error 00% 14448 -

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.

How come it can't complete the long tests though?

Dunno.

It only gets about 40% done and then fails. Isn't that a bad sign?

I don't test drives like that, just watch the
bad sector numbers to see if they change.

On 4/19/2014 8:02 PM PT, Rod Speed typed:

Yeah, a few reallocated sectors are no big deal on a drive
that old. Some of those older drives don't handle mains
failure that well and can produce a bad sector that way
and then just reallocate that bad sector.

Interesting. I did not know that.


Hmm. I will keep my compound eyes on it then.

I wonder if Linux/Debian will keep notifying about them daily like
this morning.

Dunno, I don't use that much so can't say about that.

We'll see...


That's the same as what you posted yesterday
on the most important bad sector data.

OK. So, I am just looking at "6" value to rise to be concerned.



How come it can't complete the long tests though?

Dunno.

That is what concerns me. If it can't finish it, then something is going
bad?


It only gets about 40% done and then fails. Isn't that a bad sign?

I don't test drives like that, just watch the
bad sector numbers to see if they change.

Ah.
--
"Jesus lives!"
/\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site)
/ /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net
| |o o| |
\ _ / If crediting, then use Ant nickname and AQFL URL/link.
( ) If e-mailing, then axe ANT from its address if needed.

Hello,

Rod Speed a écrit :

Yeah, a few reallocated sectors are no big deal on a drive
that old.

However having Current_Pending_Sector or Offline_Uncorrectable = 1 is a
bit more annoying. It means that the data inside a sector is currently
unreadable and the embedded disk controller was unable to reallocate the
failing sector. In short, it means : data has been lost. Not too good
for a backup drive.

Pascal Hambourg writes:
Rod Speed a écrit :

Yeah, a few reallocated sectors are no big deal on a drive
that old.

However having Current_Pending_Sector or Offline_Uncorrectable = 1 is a
bit more annoying. It means that the data inside a sector is currently
unreadable and the embedded disk controller was unable to reallocate the
failing sector. In short, it means : data has been lost. Not too good
for a backup drive.

AIUI Current_Pending_Sector means the controller hasn’t had the
opportunity to reallocate yet, not that it’s tried and failed. But yes,
any reads from affected sectors can be expected to fail.

Oh, another thing:

Not too bad if they don't keep increasing.

Normalized SMART values decrease towards failure.

--
http://www.greenend.org.uk/rjk/