On 05/04/2020 2:50 AM, VanguardLH wrote:
I was expecting the article to provide some actual statistics,
especially since the author was Backblaze. Instead it was just a bunch
of general information with no statistics at all. Pretty useless since
it never does address how reliable are SSDs as experienced from actual
use in their data centers.

However, Backblaze doesn't use SSDs for storage of customer data, just
for a few boot drives or as frontend servers, like database servers.
They don't have many to provide any statistics, so they won't have any
statistics to report. Yet that article is just generalized fluff about
SSDs versus HDDs. You cannot draw many conclusions from it, and nothing
substantial regarding reliability.

Yeah, I agree, it's just an introductory piece on what an SSD is, and
that's all. Plenty of those articles already.

If you want to increase the lifespan (aka endurance) of an SSD, increase
its overprovisioning. That allocates more reserved space to accomodate
failed memory blocks that will happen eventually. You lose some
capacity for the unallocated space on the SSD for more (well, any)
overprovisioning, but if you're getting tight on space (and aren't
collecting tons of garbage files or data that could be stored elsewhere
like on a cheaper HDD) then you really should get higher or more drives.

What a really useful metric for SSD's would be is what is their proper
operating temperatures? They are much higher than HDD's, but how much
over are they? Each manufacturer seems to have its own ideas, and then
many of them don't even release that info. The aforementioned crap that
I've been having so much trouble with, the Adata SU600-series, seem to
overheat at in their 50's and 60's, and I'm finding that it's regularly
operating at the mid-50's! I don't officially know that their limit is
the 50's/60's, that's just what I've discovered over a couple of years
of returning them over and over again. Adata don't release their own
specs about this, probably because they know that most of their drives
regularly operate above this level, which would result in even more
returns when worried owners see it running that high.

Yousuf Khan

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