When Solid State Drives Are Not That Solid

Re:When Solid State Drives Are Not That Solid by teraflop on Monday June 15, 2015 @10:52PM (#9723539)

Here's an Ubuntu bug tracker entry for what sounds like the same problem: https://bugs.launchpad.net/ubuntu/+source/fstrim/+bug/144900...

Linux 4.0.5 includes a patch that blacklists queued TRIM for the buggy drives. Windows and OS X apparently don't support queued TRIM at all, so they're unaffected.

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Re:When Solid State Drives Are Not That Solid by adamsurak on Tuesday June 16, 2015 @03:02AM (#9724192)

The drives we have detected the issue had still un-queued TRIM. I have reached to one of the kernel I/O developers for help and he confirmed that it is not related.

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Re:When Solid State Drives Are Not That Solid by asayler on Tuesday June 16, 2015 @11:48AM (#9726632)

But isn't the blacklist you link to in the article specifically for queued TRIM? E.g. https://github.com/torvalds/linux/commit/9a9324d. SO either that blacklist has nothing to do with this issue (in which case it probably shouldn't be linked from the article), or it does, and we're talking about issues with queued TRIM.

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Re:When Solid State Drives Are Not That Solid by lolgay5 on Tuesday June 16, 2015 @12:25PM (#9726980)

The article very clearly states that the issue had nothing to do with queued or unqueued TRIM:

Our affected drives did not match any pattern so they were implicitly allowed full operation.

See the list:

  SAMSUNG MZ7WD480HCGM-00003
  SAMSUNG MZ7GE480HMHP-00003
  SAMSUNG MZ7GE240HMGR-00003

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