Bad block on SanDisk SD6SF1M256G1024 -- looking for documentation

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1

I have a device with a  SanDisk SD6SF1M256G1024 mSATA SSD.   I was looking in event log when I accidentally stumbled onto a bad block disk error saying: "The device, \Device\Harddisk0\DR0, has a bad block.  "

I used smartctl to look up SMART info, but nothing conclusive.  However, there were lots of unknown attributes, as shown below:

ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0032   100   100   —    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   019   100   —    Old_age   Always       -       19
 12 Power_Cycle_Count       0x0032   100   100   —    Old_age   Always       -       44
166 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       1
167 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       24
168 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       10
169 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       218
171 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       0
172 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       0
173 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       1
174 Unknown_Attribute       0x0032   100   100   —    Old_age   Always       -       13
187 Reported_Uncorrect      0x0032   100   100   —    Old_age   Always       -       0

Is there a document that describes what those unknown attributes mean?

TIA

2

No, there is no document showing what the unknown attributes are. These are typically vendor specific attributes not related to drive life expectancy. That said a single bad block is not really a cause for concern. Reallocated sector count and uncorrectable errors still show 0 so the drive itself is most likely in good shape.