Friday, 27 April 2018

Is my SSD drive going bad? SMART error


Is there something wrong with my SSD drive ? It's still under warranty so I can replace it ;)


SMART Error Log Version: 1
ATA Error Count: 1
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 1 occurred at disk power-on lifetime: 1537 hours (64 days + 1 hours)
When the command that caused the error occurred, the device was active or idle
.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 00 00 00 00

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ec 00 00 00 00 00 00 00 00:19:35.000 IDENTIFY DEVICE
e5 00 00 00 00 00 00 ff 00:19:34.500 CHECK POWER MODE
b0 da 00 00 4f c2 00 00 00:17:57.100 SMART RETURN STATUS
ef 02 00 00 00 00 a0 00 00:17:57.100 SET FEATURES [Enable write cache]
ef aa 00 00 00 00 a0 00 00:17:57.100 SET FEATURES [Enable read look-ahea
d]

More generally: Are there specific techniques for SMART on SSD drives?



Answer



I don't know, if ssds support this, but for a normal hdd, if you suspect a problem, you let it do a short or long selftest:


smartctl -t short /dev/sdX
# or
smartctl -t long /dev/sdX

It will normally tell you how long this takes. Leave you computer on for that time. Then check the result with smartctl -a /dev/sdX. I recommend keeping a trail of smartctl -a outputs somewhere to compare what changed.


All that said, I really don't know, what SSDs these days support when it comes to smart. The last time I had an SSD connected to my main box, its smart was… well, it could use some improvement.


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