hi all,

     Im using smartmontools-5.37, and i try to run short selftest in my Hitachi hard disk connected to 3w_9xxx hardware raid controller card.After completing the test i cont able to access my hard disk (i.e ) i cont able to create raid on that hard disk. And I'm getting some warning after the SMART Self-test log structure revision, the warning message are

Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.
SMART Selective self-test log data structure revision number 1.

  I hereby display the command issued by me and the output.

-Command# /usr/local/sbin/smartctl -t short -d 3ware,1 /dev/twa0
smartctl version 5.37 [i686-pc-linux-gnu] Copyright (C) 2002-6 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

OUTPUT: === START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".
Command "Execute SMART Short self-test routine immediately in off-line mode" failed: Input/output error

command:# /usr/local/sbin/smartctl -a -d 3ware,1 /dev/twa0

oUTPUT: smartctl version 5.37 [i686-pc-linux-gnu] Copyright (C) 2002-6 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Model Family:     Hitachi Deskstar 7K500 series
Device Model:     HDS725050KLA360
Serial Number:    KRVN63ZAHYHYSD
Firmware Version: K2AOAD1A
User Capacity:    500,107,862,016 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   7
ATA Standard is:  ATA/ATAPI-7 T13 1532D revision 1
Local Time is:    Mon Jun 18 20:57:09 2007 IST
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:  (0x02) Offline data collection activity
                              
          was completed without error.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      ( 241) Self-test routine in progress...
                                        10% of test remaining.
Total time to complete Offline
data collection:                 (10419) 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:        ( 174) minutes.

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  Short offline       Completed without error       00%       398         -
# 2  Short offline       Completed without error       00%       397         -
# 3  Short offline       Completed without error       00%       397         -

Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.
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.

                       And one more query, i want to know about (Offline data collection status:  (0x02)) what 0x02 hexadecimal value refer to.please clarify my Query. Thanks in advance.

                                                                                                                                                        -sathiyadev