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I mentioned in a thread a few weeks ago I had acquired a Mediasonic HFR2-SU3S2 PRORAID 4-bay external enclosure, and was dismayed at the performance (2.5MB/s over USB3, 5MB/s over eSATA) with a RAID-5 configuration.
There was mention that RAID-5 has significant overhead over other types of RAID. Someone suggested to try RAID-10. I'm "losing" an additional drive worth of space (compared to RAID-5), but with RAID-10, as I'm writing this, performance is currently holding steady at ~100+ MB/s (vs 5, at best).
It blows my mind that performance would be that much different. There's overhead, and then there's 20x slower throughput. The system is otherwise identical - same drives, same enclosure, same cables, same system it's connected to.
This is with full-disk VeraCrypt encryption. Without encryption, RAID-10 showed spikes of up to 160MB/s (but generally holding steady at 120-130MB/s). I'm okay with that.
If there's something else to blame, I'm not seeing it. But right now, I have little choice but to say RAID-5 is a killer when it comes to write operations. Again, I knew you don't get any of that for free, there's some overhead, but I never expected it to reach that level.
If I've reached the wrong conclusion, then I'm wrong. I just see nothing else to blame right now.
And I'm a much happier camper. This is usable.
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Here's something that compares the two : troubleshootingcentral.com raid-5-vs-raid-10/[^]
It is a combined mirrored, striped configuration so that explains the speed.
"They have a consciousness, they have a life, they have a soul! Damn you! Let the rabbits wear glasses! Save our brothers! Can I get an amen?"
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Wordle 1,042 4/6
⬛⬛🟨⬛⬛
⬛🟨🟨🟨⬛
🟩🟩⬛🟩🟩
🟩🟩🟩🟩🟩
Never heard of the word... hit n try with last letter.
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Wordle 1,042 3/6
⬜⬜🟨⬜⬜
🟨🟨⬜⬜⬜
🟩🟩🟩🟩🟩
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Wordle 1,042 4/6
⬜⬜🟨⬜⬜
⬜⬜⬜🟩⬜
⬜🟩⬜🟩⬜
🟩🟩🟩🟩🟩
Had to look it up.
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Wordle 1,042 3/6*
🟨⬜⬜⬜⬜
🟨⬜🟨🟩⬜
🟩🟩🟩🟩🟩
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Wordle 1,042 6/6
⬜⬜🟨⬜⬜
⬜⬜⬜⬜⬜
⬜⬜🟨⬜⬜
🟨🟨⬜🟨⬜
⬜🟩🟩🟩🟩
🟩🟩🟩🟩🟩
Sandeep Mewara wrote: Never heard of the word... hit n try with last letter.
Same!
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⬜⬜🟨⬜⬜
🟨🟨⬜⬜⬜
🟨🟨⬜🟩🟩
🟩🟩🟩🟩🟩
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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Wordle 1,042 5/6*
🟨⬛⬛⬛⬛
⬛⬛🟨🟩⬛
🟨⬛⬛🟩⬛
⬛🟩⬛🟩⬛
🟩🟩🟩🟩🟩
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Wordle 1,042 4/6*
⬜⬜🟨⬜⬜
🟨⬜⬜⬜⬜
🟨🟩⬜🟨⬜
🟩🟩🟩🟩🟩
Happiness will never come to those who fail to appreciate what they already have. -Anon
And those who were seen dancing were thought to be insane by those who could not hear the music. -Frederick Nietzsche
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Wordle 1,042 3/6
⬛⬛🟨⬛⬛
🟨⬛🟩⬛⬛
🟩🟩🟩🟩🟩
If it would've been an easier word, I would've gotten 6/6. 
Jeremy Falcon
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I'm crylaughing at myself. I forgot how to enforce operator precedence in parsing code.
I've written it countless times. I have no idea how I forgot. It should be practically muscle memory at this point.
Next I will forget my birthday. 
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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honey the codewitch wrote: Next I will forget my birthday.
Just don't forget your SO's birthday... 
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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Any operator who slips you a twenty gets precedence.
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Pretty sure you already got it back. Anyway my 30 years old notes, based on a Modula2 publication from Niklaus Wirth 
Expression
\
SimpleExpression {Relation SimpleExpression}
\ \
\ "=="¦"!="¦"<"¦"<="¦">"¦">="
\
["+"¦"-"] Term {AddOperator Term}
\ \
\ "+"¦"-"¦"||"
\
Factor {MulOperator Factor}
\ \
\ "*" ¦ "/" ¦ "&&"
\
Number
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Variable
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| Designator
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String
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| """ {Aplha¦Digit} """
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FunctionCall
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| Designator [ParameterList]
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"(" Expression ")"
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Negation
\
"!"
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Thanks, but I can write a grammar for it. I just forgot how to write the code. :P
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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Not clear on what happened.
Did you forget to put operator precedence enforcement into the program, or did you forget how to implement operator precedence enforcement?
The difficult we do right away...
...the impossible takes slightly longer.
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Sadly, I came to this thread to read about bicycles  I recently acquired a Circus Bike and that will make you feel like you truly can't ride a bike! Now back to your regularly scheduled programming.
Hogan
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Are you expecting us to click an unknown trick kindof link?
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Could be ...  [^]
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Isn't linking to other interconnected pages sort of the basis for the internet?
How do you browse if you don't trust links? 
Besides, southmountain is a long time and upstanding member with 23K, he's not posting spam.
Last, but not least, you can clearly see it's an article on msn by hovering over the link (at least on desktop).
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I am on mobile, not able to see link.
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