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4 10k drives raid 10 vs SSD

post #1 of 19
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Price being no concern what would be better the raid array or the single SSD?
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post #2 of 19
Vertex 3 would win just about everything minus space.
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post #3 of 19
if the SSD is a OCZ REVO drive i dont think the RAID HDDs can beat it
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post #4 of 19
I just replaced a RAID 5 with 3 500GB caviar blacks with an OCZ vertex 3 120GB and the SSD wins hands down. Its the best upgrade that I've ever done by far (even beats going from a 5770 to a 580). It's so fast that starting up windows (including typing in my password and login) is at least four times as fast as my POST.
Edited by Shozzking - 6/5/11 at 8:37pm
UNDER $1700!!!
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UNDER $1700!!!
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post #5 of 19
I have a budget SSD and it makes things fly. Linux boots in 5 seconds and has a usable browser in 10. My bios take twice as long. I could only image how much faster a high performance ssd would be.

Also if price is no concern then why not just raid some SSD's?
post #6 of 19
Quote:
Originally Posted by animal0307;13766330 
I have a budget SSD and it makes things fly. Linux boots in 5 seconds and has a usable browser in 10. My bios take twice as long. I could only image how much faster a high performance ssd would be.

I have a F60 SATAII with 275 read/write speeds and my PC takes longer to post then it does to get into windows and open firefox lol

I can imagine like an INTEL 510 or Vertex 3 eek.gif
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post #7 of 19
I have 4 10k Savios - and can confirm that even a budget SSD wipes them away, even in RAID0 let alone RAID10.

The SAS drives are sat doing OS/VM duty in my server rather than my workstation. Better value/GB than SSDs (at least when I bought them), but not fast enough to wow you.
post #8 of 19
After two hours of continuous writes, a C300 drops to 15ms access time and 2k iops. Now imagine that sucker after a day a two. I'll stick with my spinners, thanks. =)

That being said...4 drives is really not that many, especially if you are concerned about write performance. With hard drives, it's the opposite of SSDs - you want to go with as many small drives as possible. 10 x 36GB / 15k / 2.5" would be a lot more impressive than 4 x 146GB / 10k / 3.5".

The only thing that can really match or exceed a decent sas array in performance is a ram disk.
post #9 of 19
Quote:
Originally Posted by thefreeaccount;13782797 
After two hours of continuous writes, a C300 drops to 15ms access time and 2k iops. Now imagine that sucker after a day a two. I'll stick with my spinners, thanks.

That sounds like a firmware problem, not all SSDs behave this way.

See this thread: http://www.xtremesystems.org/forums/showthread.php?t=271063&page=14 After 64 TERABYTES of writes to a 40gb drive, speeds have not dropped at all. Performs just like a brand new drive. (post #335 and 337)
Edited by pursuinginsanity - 6/7/11 at 5:49am
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post #10 of 19
Quote:
Originally Posted by thefreeaccount;13782797 
After two hours of continuous writes, a C300 drops to 15ms access time and 2k iops. Now imagine that sucker after a day a two. I'll stick with my spinners, thanks. =)

That being said...4 drives is really not that many, especially if you are concerned about write performance. With hard drives, it's the opposite of SSDs - you want to go with as many small drives as possible. 10 x 36GB / 15k / 2.5" would be a lot more impressive than 4 x 146GB / 10k / 3.5".

The only thing that can really match or exceed a decent sas array in performance is a ram disk.

I'm not sure where you got the degradation statistic from, but I don't think it's correct.

And I'm also pretty sure that SSDs are in fact much faster than RAID arrays, and you 'sticking with your spinners' isn't a wise move if you want the best performance...
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