When Solid State Drives Are Not That Solid • Hacker News Board

Re: When Solid State Drives Are Not That Solid

#121

Post by Supersaiyan_IV » Wed, Jun 17, 2015, 10:02 AM UTC

Supersaiyan_IV wrote: post #107

Undoubtedly the same issue happened to me on an 500GB 840 EVO with NTFS. SSD zeroed out a part of the disk during runtime, as I watched this happen music was playing from this drive. It was mounted from Ubuntu MATE 15.04 and playing a music library through Audacious. Suddenly music glitched and IO errors began appearing. Rebooted to a DISK READ ERROR (MBR was on the EVO). Ran chkdsk from USB and it showed a ridiculou…

To the downvoters: this occurred a week after upgrading to Samsung's EXT0DB6Q firmware. Meaning that mentioned read delays should've been nonexistent.

Not to mention that this disk has only had 5TB written to it.

Re: When Solid State Drives Are Not That Solid

#122

Post by hvidgaard » Wed, Jun 17, 2015, 11:43 AM UTC

stream_fusion wrote: post #120

hvidgaard wrote: post #119

Earlier quoted context omitted.

Trim really is only a helpful message when the drive is near full so the GC can preemptively zero blocks and retain good write speed. Without trim, the firmware must wait until it gets a write for a particular block before it know it can be erased. If your drive has reasonably with unprovisioned space, it can simply work around the missing trim commands - this however, is theory, I do not know if the firmware actuall…

Thanks. I'll probably end up creating an unprovisioned partition. It's frustrating, exactly because of the uncertainty re future performance. Especially given the price premium for pro/enterprise level hardware.

You can research if the firmware understands MBR and GPT - if it only understands one, then you have to use that. Alternatively use Samsungs own software (I think it's called Magician, can't remember exactly), it will make sure you have the unprovisioned space setup correctly.

Re: When Solid State Drives Are Not That Solid

#123

Post by vidarh » Wed, Jun 17, 2015, 8:19 PM UTC

pjc50 wrote: post #80

vidarh wrote: post #78

Earlier quoted context omitted.

It's a real enough thing that the IBM DeathStar incident [1] [2] was a large factor in making IBM exit the harddisk market (sold off to Hitachi) [1] https://en.wikipedia.org/wiki/HGST_Deskstar [2] http://www.astro.ufl.edu/~ken/crash/index.html

But they're still in business making hard drives, under the DeskStar name. Seagate had a round of failures at one point. I'm sure there are people out there who've sworn off WD as well.

Who? If you're referring to IBM, then they're not. IBM sold off their entire hard-disk division to Hitachi (which a few years ago sold it off to WD).

If you're referring to Hitachi, then they did continue it, yes, but they bought it on a fire-sale, and their name was not attached to the original affair, so they presumably did not see it as particularly risky.