Re: [smartmontools-support] SSD Device statistics

[Artem B. <ap...@ng...>]

For Intel 520:

smartctl -i -l devstat,0 -l devstat /dev/sdc
smartctl 5.43 2012-02-27 r3515M [x86_64-linux-2.6.32-37-generic] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     INTEL SSDSC2CW120A3
Serial Number:    CVCV152602GB120BGN
LU WWN Device Id: 5 001517 bb27be592
Firmware Version: 400i
User Capacity:    120,034,123,776 bytes [120 GB]
Sector Size:      512 bytes logical/physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   8
ATA Standard is:  ACS-2 revision 3
Local Time is:    Tue Mar 20 13:54:27 2012 NOVT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

Device Statistics (GP Log 0x04) supported pages
Page Description
   0  List of supported log pages
   1  General Statistics
   4  General Errors Statistics
   6  Transport Statistics
   7  Solid State Device Statistics

Device Statistics (GP Log 0x04)
Page Offset Size         Value  Description
   1  =====  =                =  == General Statistics (rev 2) ==
   1  0x008  4                8  Lifetime Power-On Resets
   1  0x010  4                9  Power-on Hours
   1  0x018  6        387752868  Logical Sectors Written
   1  0x028  6        361238231  Logical Sectors Read
   4  =====  =                =  == General Errors Statistics (rev 1) ==
   4  0x008  4                0  Number of Reported Uncorrectable Errors
   4  0x010  4               70  Resets Between Cmd Acceptance and Completion
   6  =====  =                =  == Transport Statistics (rev 1) ==
   6  0x008  4               70  Number of Hardware Resets
   6  0x010  4               94  Number of ASR Events
   6  0x018  4                0  Number of Interface CRC Errors
   7  =====  =                =  == Solid State Device Statistics (rev 1) ==
   7  0x008  1              255  Percentage Used Endurance Indicator


Some unknown attributes in -A output:

smartctl -A /dev/sdc
smartctl 5.43 2012-02-27 r3515M [x86_64-linux-2.6.32-37-generic] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF READ SMART DATA SECTION ===
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
   5 Reallocated_Sector_Ct   0x0032   100   100   000    Old_age   Always       
-       0
   9 Power_On_Hours          0x0032   000   000   000    Old_age   Always       
-       232804408207187
  12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       
-       1
170 Unknown_Attribute       0x0033   100   100   010    Pre-fail  Always       
-       0
171 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       
-       0
172 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       
-       0
174 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       
-       1
184 End-to-End_Error        0x0033   100   100   090    Pre-fail  Always       
-       0
187 Reported_Uncorrect      0x000f   120   120   050    Pre-fail  Always       
-       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       
-       1
225 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       
-       0
226 Load-in_Time            0x0032   100   100   000    Old_age   Always       
-       65535
227 Torq-amp_Count          0x0032   100   100   000    Old_age   Always       
-       63
228 Power-off_Retract_Count 0x0032   100   100   000    Old_age   Always       
-       65535
232 Available_Reservd_Space 0x0033   100   100   010    Pre-fail  Always       
-       0
233 Media_Wearout_Indicator 0x0032   100   100   000    Old_age   Always       
-       0
241 Total_LBAs_Written      0x0032   100   100   000    Old_age   Always       
-       0
242 Total_LBAs_Read         0x0032   100   100   000    Old_age   Always       
-       0
249 Unknown_Attribute       0x0013   100   100   000    Pre-fail  Always       
-       0




On 22.02.2012 20:52, Christian Franke wrote:
> Richard wrote:
>> Hello,
>>
>> I have been trying to work out how to capture device statistics for
>> SSD’s. From what I can gather the correct command is “smartctl -q
>> noserial -i –l>  devstat,0 -l devstat /dev/sda” but this command
>> returns that device statistics are not supported. I have been using
>> version 5.42 of Smartmontools and have tried to obtain device
>> statistics for an X25-M G2, an SF1xxx and an 830. Hopefully I will
>> soon be able to try with an Intel 520. Do these drives not support
>> device statistics or am I doing something incorrectly?
>>
> The only verified testcase is the Intel 710, see sample output here:
> http://sourceforge.net/apps/trac/smartmontools/ticket/106
>
> According to product specifications, Intel 320 and 520 also support
> device statistics. X25-* and 510 series don't support it. I'm not aware
> of any devices from other vendors supporting it.
>
> Device statistics is supported if log address 0x04 appears in 'smartctl
> -l directory' output (included in '-x'):
> # smartctl -l directory ...
> ...
> GP/S Log at address 0x04 has 8 sectors [Device Statistics]
>
> If you could test with the Intel 520, please provide a sample output
> with both device statistics and SMART attributes. Then we could add it
> to drive database.
>
> Thanks,
> Christian
>
>
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