[kwlug-disc] OT: SSD disks?

[B.S.]

>That's shady. So basically stay away from TLC drives.


That was my first reaction too. Not shady / don't think it's shady - people buy 'cheap' they get same, but it's not what one is expecting / the panacea that high-end SSD seems to promise. But thinking on it a bit, maybe not so bad.

Worst case, things slow down to a really fast hard drive.

Problem seems present when file size exceeds cache.

When it played in the back of my mind ... I backup nightly all around my network. Mondoarchive local OS drive to local data drive, then rsync across network. Backup is divided up into dvd/iso sized files. So as long as cache is 6GB or so, things are still sufficiently good for me. (Versus a windows user with monolithic images in that situation.) The odd time where I exceed 5GB in a single file, especially in a backup running overnight where I'm away from the computer and won't notice a slowdown on that one file, it's ok if it write "only at the speed of a really fast hard drive". Still better than a hard drive. And it generally only happens once - rsync skipping the file on subsequent runs.

OTOH - it does make sense not to go with the smallest ~64GB / lowest cache SSDs, or don't go TLC, as said.

So, use case probably matters, and no TLC under any circumstances probably isn't warranted.

>________________________________
> From: Chris Irwin <chris at chrisirwin.ca>
>To: KWLUG discussion <kwlug-disc at kwlug.org> 
>Sent: Monday, November 16, 2015 4:20 PM
>Subject: Re: [kwlug-disc] OT: SSD disks?
> 
>
>On Mon, Nov 16, 2015 at 2:10 PM, Jeff Smith <crankyoldbugger at gmail.com> wrote:
>
>This article on an SSD cache problem was in my face today: http://www.pcworld.com/article/2998497/storage/tlc-nand-ssds-the-crippling-problem-storage-makers-dont-advertise.html#tk.nl_pcwbest
>>
>>There's some interesting stuff in there..
>>
>
>
>That's shady. So basically stay away from TLC drives.
>
>
>And sadly, there's also the bait-and-switch that Kingston did, where they switched from synchronous NAND in the early drives (used by reviewers) to cheaper, slower asynchronous NAND in the drives you'd be more likely to buy.
>
>http://techreport.com/review/26664/alleged-bait-and-switch-tactics-spur-kingston-pny-ssd-boycott