SMART errors on new, unpartitioned disk

[David Baron]

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

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


For details see host's SYSLOG (default: /var/log/syslog).

You can also use the smartctl utility for further investigation.
No additional email messages about this problem will be sent.


Sep  5 19:54:32 dovidhalevi smartd[6914]: Device: /dev/sdc, type changed from 
'scsi' to 'sat'
Sep  5 19:54:32 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], opened
Sep  5 19:54:32 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], found in 
smartd database.
Sep  5 19:54:32 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], is SMART 
capable. Adding to monitor list.
Sep  5 19:54:32 dovidhalevi smartd[6914]: Monitoring 3 ATA and 0 SCSI devices
Sep  5 19:54:33 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], 1 Currently 
unreadable (pending) sectors
Sep  5 19:54:33 dovidhalevi smartd[6914]: Sending warning via mail to system-
notification ...
Sep  5 19:54:33 dovidhalevi smartd[6914]: Warning via mail to system-
notification: successful
Sep  5 19:54:33 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], 1 Offline 
uncorrectable sectors

Is this disk OK, legit errors for non partitioned, not formatted new disk or 
is this a problem, possibly in BIOS? This is a 1 terrabyte disk.


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Re: SMART errors on new, unpartitioned disk

[Bob Proulx]

David Baron wrote:
 Device: /dev/sdc [SAT], 1 Offline uncorrectable sectors
 Sep  5 19:54:33 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], 1 Currently 
 unreadable (pending) sectors
 Sep  5 19:54:33 dovidhalevi smartd[6914]: Device: /dev/sdc [SAT], 1 Offline 
 uncorrectable sectors
 ...
 Is this disk OK, legit errors for non partitioned, not formatted new disk or 
 is this a problem, possibly in BIOS? This is a 1 terrabyte disk.

This does not look good.  Looks like a bad drive.

I would run both short and long self tests and see the results from
it.  First look to see if any errors are already logged.

  # smartctl -H /dev/sdc

  # smartctl -l selftest /dev/sdc

  # smartctl -a /dev/sdc | less

Then after observing the results already logged:

  # smartctl -t short /dev/sdc
  # sleep 120
  # smartctl -l selftest /dev/sdc

Then depending upon that I would run a long test.

  # smartctl -t long /dev/sdc
  # sleep $((60*20)) # as long as needed for long self test to complete
  # smartctl -l selftest /dev/sdc

I don't hold out much hope.  I expect there to be errors in the
selftest log.  In which case I would say that the drive is bad and
replace it as soon as possible.

Bob


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