smartd errors

[darose-prQxUZoa2zOsTnJN9+BGXg at public.gmane.org (David Rosenstrauch)]

Got some smartd errors appearing today on a brand new (!) disk:

Device: /dev/sdc, 1 Currently unreadable (pending) sectors
...
Device: /dev/sdc, 1 Offline uncorrectable sectors


However, I ran both a short and a long test with smartctl, and the disk
shows no errors.  I'm currently in the process of running another set of
both test, but I'm just wondering:  WTF is going on?  If the disk
actually was bad, wouldn't there be some other evidence of that and/or
wouldn't it have failed the test?

Just looking for advice on how to proceed.  As of right now, I'm
figuring to RMA the thing (since it's less than a week old), but I'm
just wondering if I'm overreacting.

All the gory smartctl details are attached below, in case it's useful
identifying what's going on.

Thanks,

DR

-----

smartctl version 5.38 [x86_64-unknown-linux-gnu] Copyright (C) 2002-8
Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.11
Device Model:     ST3500320AS
Serial Number:    6QM070RT
Firmware Version: SD15
User Capacity:    500,107,862,016 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 4
Local Time is:    Tue Dec 30 14:40:56 2008 EST
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:      ( 249) Self-test routine in progress...
                                         90% of test remaining.
Total time to complete Offline
data collection:                 ( 650) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                         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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 120) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x103b) SCT Status supported.
                                         SCT Feature Control supported.
                                         SCT Data Table supported.

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   119   100   006    Pre-fail
Always       -       234126110
   3 Spin_Up_Time            0x0003   097   097   000    Pre-fail
Always       -       0
   4 Start_Stop_Count        0x0032   100   100   020    Old_age
Always       -       5
   5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail
Always       -       0
   7 Seek_Error_Rate         0x000f   100   253   030    Pre-fail
Always       -       524090
   9 Power_On_Hours          0x0032   100   100   000    Old_age
Always       -       159
  10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail
Always       -       0
  12 Power_Cycle_Count       0x0032   100   100   020    Old_age
Always       -       5
184 Unknown_Attribute       0x0032   100   100   099    Old_age   Always
       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always
       -       0
188 Unknown_Attribute       0x0032   100   100   000    Old_age   Always
       -       0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always
       -       0
190 Airflow_Temperature_Cel 0x0022   059   051   045    Old_age   Always
       -       41 (Lifetime Min/Max 36/42)
194 Temperature_Celsius     0x0022   041   049   000    Old_age   Always
       -       41 (0 25 0 0)
195 Hardware_ECC_Recovered  0x001a   040   038   000    Old_age   Always
       -       234126110
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

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    Self-test routine in progress 90%       159
      -
# 2  Short offline       Completed without error       00%       158
      -
# 3  Extended offline    Completed without error       00%       157
      -
# 4  Short offline       Completed without error       00%       155
      -

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.