TS64GSSD370S - problems with self-tests

[viktor]

Seems like smartctl doesn't handle self-tests properly for this device. First, I ran some tests when I bought these drive. When I tried to stop them smartctl still have been showing me that test routine is in progress. Then I set up auto-tests via smartd.conf. In "smartctl -a /dev/sda" output I was able to see the results of the last 20 test. Lifetime hours were increasing up to ~250 hours and then this counter reset - the numbering of lifetime started again from ~18 hours. Seems like overflow for unsigned integer. After executing "smartctl -x /dev/sda" all the results of self-test cleared - there are no entries in "smartctl -a /dev/sda" output! I've attached "smartctl -x /dev/sda" output

[viktor]

NB: Power On Hours attribute still increasing with time, so seems like the problem is related to the self-tests only

[viktor]

Now you can see difference in Power_On_Hours and Lifetime Hours in out.txt

[Christian Franke]

Essentially smartctl prints what the drive firmware returns. If bogus info is returned, there is nothing we could do.

After executing "smartctl -x /dev/sda" all the results of self-test cleared - there are no entries in "smartctl -a /dev/sda" output!

Note that these outputs contain different (legacy vs. extended) self-test logs. Please provide output of both self-test logs (use smartctl -a -x).

PS: Please do not set the Milestone in future submissions.

[Christian Franke]

ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
...
  9 Power_On_Hours          ------   100   100   000    -    658
...
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%       654         -
...
#19  Short offline       Completed without error       00%       581         -
...
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%       142         -
...
#19  Short offline       Completed without error       00%        69         -
...
Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
...
0x01  0x010  4             658  ---  Power-on Hours

Hours in (legacy) SMART Self-test log are possibly only returned as 8/9-bit values or as hours - 512.

[Christian Franke]

Please provide output of smartctl -r ioctl,2 -i -l selftest ....

[Christian Franke]

Possibly a harmless firmware problem in legacy SMART Self-test log.

Missing feedback from reporter - closing ticket.

[viktor]

output of smartctl -r ioctl,2 -i -l selftest

[Christian Franke]

===== [SMART READ LOG] DATA START (BASE-16) =====
...
Entry # 1 at offset 2 + (((21- 1) + 14) % 21 * 24) = 314:
304-319: 00 00 00 00 00 00 00 00 00 00[01 00 17 00 00 00
 Type (0x01=Short)---------------------^^
 Status (0x00=OK)-------------------------^^
 Hours (0x0017=23)---------------------------^^-^^
320-335: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Entry #21 at offset 2 + (((21-21) + 14) % 21 * 24) = 338:
336-351: 00 00|01 00 c2 00 00 00 00 00 00 00 00 00 00 00
 Hours (0x00c2=194)--^^-^^
352-367: 00 00 00 00 00 00 00 00 00 00]02 00 c3 00 00 00
...
496-511: 00 00 00 00 00 00 00 00 00 00 00 00 0e 00 00 df
 Self-test index (0x0e=14)-------------------^^
 Checksum---------------------------------------------^^

...
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%        23         -
...
#21  Short offline       Completed without error       00%       194         -

[Christian Franke]

Drive firmware truncates 16-bit self-test hours to 8-bit. Smartctl prints the value correctly.