Attribute 241 seems to be Host_Writes_32MiB, because it increases by 1
if i write 32MiB to the drive.

Best regards
Michael
smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.18.5-alt451-amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in
off-line mode".
Drive command "Execute SMART Short self-test routine immediately in off-line
mode" successful.
Testing has begun.
Please wait 2 minutes for test to complete.
Test will complete after Wed Oct 21 17:31:17 2015

Use smartctl -X to abort test.


smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.18.5-alt451-amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     TOSHIBA THNSNH128GCST
Serial Number:    14VS1080TAIY
LU WWN Device Id: 5 00080d 9100a39ab
Firmware Version: HTFAN102
User Capacity:    128,035,676,160 bytes [128 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Wed Oct 21 17:33:15 2015 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM level is:     254 (maximum performance)
Rd look-ahead is: Enabled
Write cache is:   Enabled
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever 
                                        been run.
Total time to complete Offline 
data collection:                (  120) 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        (   8) minutes.
SCT capabilities:              (0x0039) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     -O-R--   100   100   000    -    0
  2 Throughput_Performance  P-S---   100   100   050    -    0
  3 Spin_Up_Time            POS---   100   100   050    -    0
  5 Reallocated_Sector_Ct   PO--C-   100   100   050    -    0
  7 Unknown_SSD_Attribute   PO-R--   100   100   050    -    0
  8 Unknown_SSD_Attribute   P-S---   100   100   050    -    0
  9 Power_On_Hours          -O--C-   100   100   000    -    530
 10 Unknown_SSD_Attribute   PO--C-   100   100   050    -    0
 12 Power_Cycle_Count       -O--C-   100   100   000    -    41
167 Unknown_Attribute       -O---K   100   100   000    -    0
168 Unknown_Attribute       -O--C-   100   100   000    -    0
169 Unknown_Attribute       PO--C-   100   100   010    -    100
170 Unknown_Attribute       PO--C-   100   100   010    -    0
173 Unknown_Attribute       -O--C-   200   200   000    -    846225
174 Unknown_Attribute       -O--C-   200   200   000    -    53687
175 Program_Fail_Count_Chip PO--C-   100   100   010    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--C-   100   100   000    -    5
194 Temperature_Celsius     -O---K   070   048   000    -    30 (Min/Max 21/52)
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
240 Unknown_SSD_Attribute   PO--C-   100   100   050    -    0
241 Total_LBAs_Written      -O--C-   100   100   000    -    10388
242 Total_LBAs_Read         -O--C-   100   100   000    -    9658
243 Unknown_Attribute       -O--C-   100   100   000    -    0
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O     51  Comprehensive SMART error log
0x03       GPL     R/O     64  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (64 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  
LBA_of_first_error
# 1  Short offline       Completed without error       00%       530         -

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.

SCT Status Version:                  3
SCT Version (vendor specific):       3 (0x0003)
SCT Support Level:                   0
Device State:                        Active (0)
Current Temperature:                    30 Celsius
Power Cycle Min/Max Temperature:     25/31 Celsius
Lifetime    Min/Max Temperature:     21/52 Celsius
Lifetime    Average Temperature:        21 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      5/40 Celsius
Min/Max Temperature Limit:            0/80 Celsius
Temperature History Size (Index):    128 (40)

Index    Estimated Time   Temperature Celsius
  41    2015-10-21 15:26    23  ****
 ...    ..(  3 skipped).    ..  ****
  45    2015-10-21 15:30    23  ****
  46    2015-10-21 15:31    24  *****
 ...    ..( 43 skipped).    ..  *****
  90    2015-10-21 16:15    24  *****
  91    2015-10-21 16:16     ?  -
  92    2015-10-21 16:17    26  *******
  93    2015-10-21 16:18    26  *******
  94    2015-10-21 16:19    27  ********
 ...    ..(  4 skipped).    ..  ********
  99    2015-10-21 16:24    27  ********
 100    2015-10-21 16:25    28  *********
 ...    ..( 11 skipped).    ..  *********
 112    2015-10-21 16:37    28  *********
 113    2015-10-21 16:38    29  **********
 ...    ..( 50 skipped).    ..  **********
  36    2015-10-21 17:29    29  **********
  37    2015-10-21 17:30    30  ***********
  38    2015-10-21 17:31    31  ************
  39    2015-10-21 17:32    31  ************
  40    2015-10-21 17:33    30  ***********

SCT Error Recovery Control:
           Read:    600 (60.0 seconds)
          Write:    600 (60.0 seconds)

Device Statistics (GP Log 0x04)
Page Offset Size         Value  Description
  1  =====  =                =  == General Statistics (rev 2) ==
  1  0x008  4               41  Lifetime Power-On Resets
  1  0x018  6        680788270  Logical Sectors Written
  1  0x020  6          4496883  Number of Write Commands
  1  0x028  6        633006344  Logical Sectors Read
  1  0x030  6         11640388  Number of Read Commands
  4  =====  =                =  == General Errors Statistics (rev 1) ==
  4  0x008  4                0  Number of Reported Uncorrectable Errors
  4  0x010  4                0  Resets Between Cmd Acceptance and Completion
  5  =====  =                =  == Temperature Statistics (rev 1) ==
  5  0x008  1               30  Current Temperature
  5  0x010  1               23  Average Short Term Temperature
  5  0x018  1                -  Average Long Term Temperature
  5  0x020  1               47  Highest Temperature
  5  0x028  1               21  Lowest Temperature
  5  0x030  1               34  Highest Average Short Term Temperature
  5  0x038  1               21  Lowest Average Short Term Temperature
  5  0x040  1                -  Highest Average Long Term Temperature
  5  0x048  1                -  Lowest Average Long Term Temperature
  5  0x050  4              490  Time in Over-Temperature
  5  0x058  1               40  Specified Maximum Operating Temperature
  5  0x060  4                0  Time in Under-Temperature
  5  0x068  1                5  Specified Minimum Operating Temperature
  6  =====  =                =  == Transport Statistics (rev 1) ==
  6  0x008  4              285  Number of Hardware Resets
  6  0x018  4                0  Number of Interface CRC Errors
  7  =====  =                =  == Solid State Device Statistics (rev 1) ==
  7  0x008  1                0~ Percentage Used Endurance Indicator
                              |_ ~ normalized value

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  2            0  Command failed due to ICRC error
0x0002  4            0  R_ERR response for data FIS
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0005  4            0  R_ERR response for non-data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS
0x0008  2            0  Device-to-host non-data FIS retries
0x0009  4            0  Transition from drive PhyRdy to drive PhyNRdy
0x000a  4            0  Device-to-host register FISes sent due to a COMRESET
0x000f  2            0  R_ERR response for host-to-device data FIS, CRC
0x0010  2            0  R_ERR response for host-to-device data FIS, non-CRC
0x0012  2            0  R_ERR response for host-to-device non-data FIS, CRC
0x0013  2            0  R_ERR response for host-to-device non-data FIS, non-CRC

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