Errors on SSD

[Sven Gaerner]

On Sun, Aug 26, 2012 at 09:58:14AM -0700, Matthew Dillon wrote:
>     Also note that you may be able to get more detailed information
>     on the problem using smartctl:
> 
>     pkg_radd smartmontools
> 
>     smartctl -d sat -a /dev/daXXX	(where daXXX is the correct device for
> 					 the SSD).
> 
>     In particular look at the wear indicator, which is typically attribute 233,
>     and available reserved space, which is typically attribute 232 (but it
>     depends on the SSD).
> 
> 						-Matt

Thanks for the hints. But I have no idea how to interpret the values.

smartctl -H -d sat /dev/da2 says all tests passed.

Can someone explain how to interpret the values? Below is the output of
smartctl -a -d sat /dev/da2 which is my OCZ SSD.

Thanks a lot.

Sven


smartctl 5.40 2010-10-16 r3189 [DragonFly 3.0-RELEASE x86_64] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     SandForce Driven SSDs
Device Model:     OCZ-VERTEX2
Serial Number:    OCZ-CU25VMZ6117F3NFM
Firmware Version: 1.29
User Capacity:    60,022,480,896 bytes
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  ATA-8-ACS revision 6
Local Time is:    Tue Sep 11 21:45:48 2012 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
Error SMART Status command failed
Please get assistance from http://smartmontools.sourceforge.net/
Register values returned from SMART Status command are:
 ERR=...., SC=...., LL=...., LM=...., LH=...., DEV=...., STS=....
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.

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: 		 (   0) seconds.
Offline data collection
capabilities: 			 (0x7f) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Abort Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					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: 	 (  48) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x003d)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

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
  1 Raw_Read_Error_Rate     0x000f   110   102   050    Pre-fail  Always       -       0/32677182
  5 Retired_Block_Count     0x0033   100   100   003    Pre-fail  Always       -       0
  9 Power_On_Hours_and_Msec 0x0032   100   100   000    Old_age   Always       -       681h+41m+10.690s
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       387
171 Program_Fail_Count      0x0032   000   000   000    Old_age   Always       -       0
172 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always       -       0
174 Unexpect_Power_Loss_Ct  0x0030   000   000   000    Old_age   Offline      -       156
177 Wear_Range_Delta        0x0000   000   000   000    Old_age   Offline      -       0
181 Program_Fail_Count      0x0032   000   000   000    Old_age   Always       -       0
182 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
194 Temperature_Celsius     0x0022   030   129   000    Old_age   Always       -       30 (Min/Max 30/30)
195 ECC_Uncorr_Error_Count  0x001c   110   102   000    Old_age   Offline      -       0/32677182
196 Reallocated_Event_Count 0x0033   100   100   000    Pre-fail  Always       -       0
231 SSD_Life_Left           0x0013   100   100   010    Pre-fail  Always       -       0
233 SandForce_Internal      0x0000   000   000   000    Old_age   Offline      -       192
234 SandForce_Internal      0x0032   000   000   000    Old_age   Always       -       384
241 Lifetime_Writes_GiB     0x0032   000   000   000    Old_age   Always       -       384
242 Lifetime_Reads_GiB      0x0032   000   000   000    Old_age   Always       -       576

Error SMART Error Log Read failed: Input/output error
Smartctl: SMART Error Log Read Failed
Error SMART Error Self-Test Log Read failed: Input/output error
Smartctl: SMART Self Test Log Read Failed
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.