For those who may never have seen all of this data before,
here is the output from the "failed" drive in my server.
Nothing wrong with it other than a loose connector at the time.
But the drive dutifully logs and remembers such issues.
Here is a short excerpt from the data, with only the parts
that are most important (to this specific drive) to keep an eye on:
Device Model: Crucial_CT960M500SSD1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
..
5 Reallocate_NAND_Blk_Cnt 0x0033 100 100 000 Pre-fail Always - 0
171 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0
172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0
173 Ave_Block-Erase_Count 0x0032 100 100 000 Old_age Always - 8
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 059 049 000 Old_age Always - 41 (0 51 255 150 0)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 314
202 Percent_Lifetime_Used 0x0031 100 100 000 Pre-fail Offline - 0
210 Success_RAIN_Recov_Cnt 0x0032 100 100 000 Old_age Always - 4
The important number here is usually the "RAW_VALUE" field.
You can see that the cabling has suffered 314 data transfer errors,
which is how I knew to look for a loose connector in the system.
Temperatures have ranged as high as 51C for this drive, currently at 41C.
The full report now follows:
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.6.3] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Crucial/Micron MX100/MX200/M5x0/M600 Client SSDs
Device Model: Crucial_CT960M500SSD1
Serial Number: xxxxxxxxxxxx
LU WWN Device Id: 5 00a075 xxxxxxxxxx
Firmware Version: MU05
User Capacity: 960,197,124,096 bytes [960 GB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 6
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Jul 7 08:16:33 2016 EDT
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: (0x82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
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: (10235) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 74) minutes.
Conveyance self-test routine
recommended polling time: ( 3) minutes.
SCT capabilities: (0x0035) SCT Status 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 FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 100 100 000 Pre-fail Always - 9
5 Reallocate_NAND_Blk_Cnt 0x0033 100 100 000 Pre-fail Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 22705
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 33
171 Program_Fail_Count 0x0032 100 100 000 Old_age Always - 0
172 Erase_Fail_Count 0x0032 100 100 000 Old_age Always - 0
173 Ave_Block-Erase_Count 0x0032 100 100 000 Old_age Always - 8
174 Unexpect_Power_Loss_Ct 0x0032 100 100 000 Old_age Always - 20
180 Unused_Reserve_NAND_Blk 0x0033 000 000 000 Pre-fail Always - 16523
183 SATA_Interfac_Downshift 0x0032 100 100 000 Old_age Always - 0
184 Error_Correction_Count 0x0032 100 100 000 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 059 049 000 Old_age Always - 41 (0 51 255 150 0)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 314
202 Percent_Lifetime_Used 0x0031 100 100 000 Pre-fail Offline - 0
206 Write_Error_Rate 0x000e 100 100 000 Old_age Always - 0
210 Success_RAIN_Recov_Cnt 0x0032 100 100 000 Old_age Always - 4
246 Total_Host_Sector_Write 0x0032 100 100 --- Old_age Always - 7996121592
247 Host_Program_Page_Count 0x0032 100 100 --- Old_age Always - 250001071
248 Bckgnd_Program_Page_Cnt 0x0032 100 100 --- Old_age Always - 363762998
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 Vendor (0xff) Completed without error 00% 22696 -
# 2 Vendor (0xff) Completed without error 00% 22682 -
# 3 Vendor (0xff) Completed without error 00% 22668 -
# 4 Vendor (0xff) Completed without error 00% 22654 -
# 5 Vendor (0xff) Completed without error 00% 22640 -
# 6 Vendor (0xff) Completed without error 00% 22626 -
# 7 Vendor (0xff) Completed without error 00% 22613 -
# 8 Vendor (0xff) Completed without error 00% 22599 -
# 9 Vendor (0xff) Completed without error 00% 22585 -
#10 Vendor (0xff) Completed without error 00% 22571 -
#11 Vendor (0xff) Completed without error 00% 22557 -
#12 Vendor (0xff) Completed without error 00% 22543 -
#13 Vendor (0xff) Completed without error 00% 22530 -
#14 Vendor (0xff) Completed without error 00% 22516 -
#15 Vendor (0xff) Completed without error 00% 22502 -
#16 Vendor (0xff) Completed without error 00% 22488 -
#17 Vendor (0xff) Completed without error 00% 22474 -
#18 Vendor (0xff) Completed without error 00% 22460 -
#19 Vendor (0xff) Completed without error 00% 22446 -
#20 Vendor (0xff) Completed without error 00% 22434 -
#21 Vendor (0xff) Completed without error 00% 22420 -
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.
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