Hi,
Can anyone help to explain why my harddisk encountered
"Unable to get disk Volume extent information" when perform "butterfly seeking"? Below is the detail log. Thanks!

PassMark BurnInTest Log file - http://www.passmark.com
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BurnInTest V5.3 Pro 1004
Trace detail level: Activity trace 2
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SYSTEM INFORMATION
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Date: 12/10/07 16:47:51
Operating system: Windows Vista Home Premium Edition build 6000
Number of CPUs: 1 (2 Core(s)/CPU, 1 Logical(s)/Core)
CPU manufacturer: GenuineIntel
CPU type: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz
CPU features: MMX SSE SSE2 SSE3 DEP PAE
CPU1 speed: 2133.8 MHz
CPU L2 Cache: 2 MB
RAM: 2044 MB
Video card: Radeon X1300 Serie (Resolution: 1024x768x32)
Disk drive: Model ST3250410AS ATA Device (Size: 232.9GB)
Optical drive: HL-DT-ST DVD-RW GSA-H11N ATA Device
Optical drive: ATAPI DVD C DH48C1P ATA Device
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DETAILED EVENT LOG
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LOG NOTE: 2007-12-10 16:47:51, Status, PassMark BurnInTest V5.3 Pro 1004
LOG NOTE: 2007-12-10 16:47:51, H:6F6 BFEBFBFF H:6F6 BFEBFBFF
LOG NOTE: 2007-12-10 16:47:51, Load icon images
LOG NOTE: 2007-12-10 16:47:51, Set thread priotity
LOG NOTE: 2007-12-10 16:47:51, Allow Drag Accept of configuration files
LOG NOTE: 2007-12-10 16:47:51, Enter Main message handler
LOG NOTE: 2007-12-10 16:47:51, Temperature, DebugTempCount1 4: Selection 0
LOG NOTE: 2007-12-10 16:48:55, Temperature, DebugTempCount1 3: Selection 0
LOG NOTE: 2007-12-10 16:48:58, StartTests
LOG NOTE: 2007-12-10 16:48:58, StartTests: Start temperature monitoring
LOG NOTE: 2007-12-10 16:48:58, StartTests: Start Battery monitoring
LOG NOTE: 2007-12-10 16:48:59, Temperature, DebugTempCount1 2: Selection 0
LOG NOTE: 2007-12-10 16:48:59, Status, Main Tests started
LOG NOTE: 2007-12-10 16:48:59, Disk (C: ), Starting test
LOG NOTE: 2007-12-10 16:48:59, Temperature, DebugTempCount2 5: Tests started, temp selected 0
LOG NOTE: 2007-12-10 16:48:59, Temperature, DebugTempCount1 1: Selection 0
LOG NOTE: 2007-12-10 16:49:00, Temperature, DebugTempCount2 4: Tests started, temp selected 0
LOG NOTE: 2007-12-10 16:49:00, Disk , Getting SMART attributes disk: C:
LOG NOTE: 2007-12-10 16:49:00, Disk , GetVolumeExtents: Unable to open \\?\Volume{67872e0a-c8eb-11db-9e7e-806e6f6e6963} (err: 5)
LOG NOTE: 2007-12-10 16:49:00, Disk, Drive C: Could not connect to drive to get SMART details
LOG NOTE: 2007-12-10 16:49:00, Disk , GetVolumeExtents: Unable to open \\?\Volume{67872e0a-c8eb-11db-9e7e-806e6f6e6963} (err: 5)
SERIOUS : 2007-12-10 16:49:00, Disk, C: Unable to get disk Volume extent information
LOG NOTE: 2007-12-10 16:49:00, Disk, Butterfly Seeking Error Code: 0 (1)
LOG NOTE: 2007-12-10 16:49:00, Disk , Disk Error (C: in Cycle: Unable to get disk Volume extent information
LOG NOTE: 2007-12-10 16:49:01, StopTests [4]
LOG NOTE: 2007-12-10 16:49:01, Test run stopping - step 0.0. 0: 0 of 2
LOG NOTE: 2007-12-10 16:49:01, Disk (C: ), Stopping test
LOG NOTE: 2007-12-10 16:49:03, Status, Test run stopped
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RESULT SUMMARY
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Test Start time: Mon Dec 10 16:48:59 2007
Test Stop time: Mon Dec 10 16:49:01 2007
Test Duration: 000h 00m 02s
Test Name Cycles Operations Result Errors Last Error
Disk (C: ) 1 0 FAIL 1 Unable to get disk Volume extent information
TEST RUN FAILED
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SERIOUS ERROR SUMMARY FOR THE LAST TEST RUN
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SERIOUS : 2007-12-10 16:49:00, Disk, SERIOUS: Unable to get disk Volume extent information (x 1)