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Old October 16th 18, 11:19 PM posted to comp.sys.ibm.pc.hardware.storage
Lynn McGuire[_3_]
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Default "Hard Drive Stats for Q3 2018: Less is More"

On 10/16/2018 3:45 PM, VanguardLH wrote:
Lynn McGuire wrote:

"Hard Drive Stats for Q3 2018: Less is More"
https://www.backblaze.com/blog/2018-...failire-rates/

"As of September 30, 2018 Backblaze had 99,636 spinning hard drives. Of
that number, there were 1,866 boot drives and 97,770 data drives. This
review looks at the quarterly and lifetime statistics for the data drive
models in operation in our data centers. In addition, we˘ll say goodbye
to the last of our 3TB drives, hello to our new 12TB HGST drives, and
we˘ll explain how we have 584 fewer drives than last quarter, but have
added over 40 petabytes of storage. Along the way, we˘ll share
observations and insights on the data presented and we look forward to
you doing the same in the comments."

That is a lot of hard drives. And no SSDs (cost ratio still too high).


https://www.backblaze.com/blog/ssd-v...re-of-storage/

Says they do use some SSDs. Back in 2016, looks like Samsung planned to
get SSDs down to twice the cost of HDDs by 2020.

https://www.extremetech.com/computin...levels-by-2020

A newer article:

http://www.enterprisestorageforum.co...omparison.html

shows an SDD is still, at least, costs 7.4 times that of an HDD. At
Newegg, a Samsung 1TB EVO SATA3 SSD is $200 ($167 now on sale). A WDC
1TB Black SATA3 HDD is $100 ($73 now on sale). Not quite 7 times the
price but about 2 times (so Samsung has exceeded their timeline).

When replacing a single HDD with an SSD in your home computer to boost
its performance, the additional $100 is a tolerable one-time cost per
computer. Replacing 100,000 HDDs with SSDs would cost $10 million.


Isn't their average drive size around 7 or 8 TB now ? Aren't multiple
TB SSDs very expensive still ?

Lynn