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SSD RAID and various questions

post #1 of 7
Thread Starter 
Looking at switching over my OS array to SSD. Currently I have 2x Raptor 150gb short-stroked to 80gb and in a Raid 0 array. However, I barely use 25gb of that and have sat at around that 25gb usage for nearly a year now.

So - I'm thinking of going with an OCZ Vertex 2. The 50gb will be nearly double what I actually use, so plenty of room if anything comes up - it's quick - it's shiny.

Now the question, and I have to ask simply because I can't not complicate things. What happens if I put 2 of these OCZ Vertex 2s in Raid 0 using an Intel Matrix Raid controller (motherboard is Rampage II Extreme). Am I going to see improved read/write speeds or am I going to choke the controller? Is the controller going to be able to pass through TRIM commands properly despite the drive being in an array or is that a non-issue?

Also, is there anything else I should know/prepare for/need to do before purchasing and installing such a drive? Any specific drivers I'd need? (I'd seen in a few places people talking about installing "Windows 7 with TRIM support" - is this a specific install option available to users with SSD? Would a fresh install be required? Or would I be good on my current install?) Any other drives I should be looking at besides the Vertex 2? Any information/advice would be appreciated.
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post #2 of 7
There's some debate regarding whether the RAID helps much in the real world, but I can tell you that RAID controllers can't pass TRIM commands to SSDs in RAID. They recently did gain the ability to pass TRIM when non-RAID SSDs are paired with HDDs that are in RAID.

OCZs latest firmware gives you another cleanup option that may work as well for you as TRIM, but it's obviously less convenient that Win7's built-in support.
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post #3 of 7
Thread Starter 
Alright, so scratch the RAID idea then. Doesn't sound like it's worth the effort trying to do TRIM manually (while I love complicating issues I like the results to be easy to manage).

In addition to the above, anyone have any comments on the OCZ Vertex 2 vs. the Intel X-25M (I'd go for the 80gb, SSDSA2MH080G2R5) specifically?


EDIT:
"Also - concerning the Vertex 2
I noticed the 50GB version - OCZSSD2-2VTX50G - has an "extended capacity" counterpart - OCZSSD2-2VTXE60G -

Any idea what that's about, and how the "extended capacity" might affect performance?"


Figured this one out, for anyone whose interested:
The 50GB version is actually a 60GB SSD with +/-10GB being dedicated to provisioning (28%) - while the 60GB extended version is a 64GB SSD with +/-4GB being dedicated to provisioning (7%).

So with the 50GB version you're looking at less performance degradation over time and a bit more reliability vs. 20% more capacity for about the same price.
Edited by TopGunSF - 6/8/10 at 3:48pm
Ikaros
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post #4 of 7
i am running the intel 80gb in raid 0 no issues and the big difference atm is ocz has faster write speeds, however with raid 0 the write speeds become less of a issue.

you can't go wrong with a vertex 2 or intel x25-m 80gb, i find performance much much better with raid 0 IMO.

plus some day hopefully soon intel will relase trim support for raid, i do know it is in the works.

also capacity with ssd is very important.
    
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post #5 of 7
Quote:
Originally Posted by TopGunSF View Post


Figured this one out, for anyone whose interested:
The 50GB version is actually a 60GB SSD with +/-10GB being dedicated to provisioning (28%) - while the 60GB extended version is a 64GB SSD with +/-4GB being dedicated to provisioning (7%).

So with the 50GB version you're looking at less performance degradation over time and a bit more reliability vs. 20% more capacity for about the same price.
To further complicate matters... you can always increase that provision yourself, much like short-stroking a HDD.
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post #6 of 7
Quote:
Originally Posted by TopGunSF View Post
Alright, so scratch the RAID idea then. Doesn't sound like it's worth the effort trying to do TRIM manually (while I love complicating issues I like the results to be easy to manage).

In addition to the above, anyone have any comments on the OCZ Vertex 2 vs. the Intel X-25M (I'd go for the 80gb, SSDSA2MH080G2R5) specifically?


EDIT:
"Also - concerning the Vertex 2
I noticed the 50GB version - OCZSSD2-2VTX50G - has an "extended capacity" counterpart - OCZSSD2-2VTXE60G -

Any idea what that's about, and how the "extended capacity" might affect performance?"


Figured this one out, for anyone whose interested:
The 50GB version is actually a 60GB SSD with +/-10GB being dedicated to provisioning (28%) - while the 60GB extended version is a 64GB SSD with +/-4GB being dedicated to provisioning (7%).

So with the 50GB version you're looking at less performance degradation over time and a bit more reliability vs. 20% more capacity for about the same price.

1. Vertex 2 is based on the Sandforce controller which has many tricks up it's sleeve and thus has very fast performance... but it's still new, so data safety has yet to be proven...
2. Intel X25-M has an additional 20 or 30 GB which could be handy, but it's based on a best-of-the-v1-SSDs controller, still the fastest out of Indilinx and such but not as fast as Sandforce (and Marvells controller in the RealSSD C300...) oh and still it is usually cheaper which is nice.

So it's "tried and tested" vs "new and super-fast, but somewhat untried"

Either way you'll be satisfied, but with the Sandforce-based Vertex 2 you get really fast sequential writes as well... Also OCZ is great if your a forum-lover since all their support is in their forums, they don't even have a proper download section on their site , it's all in the forums...
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post #7 of 7
Thread Starter 
Thanks for the help all, I ended up going with the Intel drive. 50GB just made me nervous, easy to fill and then I'd be SOL.
Ikaros
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Core i7 920 Asus Rampage II Extreme EVGA GTX 580, EVGA GTX 285 PhysX 6 gigs Corsair DDR3 1866 
Hard DriveOptical DriveOSPower
Intel X-25M 80Gb SSD, 3x Caviar Black 1TB R5 2x Lite-On DVD Windows 7 Corsair HX1000W 
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Ikaros
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CPUMotherboardGraphicsRAM
Core i7 920 Asus Rampage II Extreme EVGA GTX 580, EVGA GTX 285 PhysX 6 gigs Corsair DDR3 1866 
Hard DriveOptical DriveOSPower
Intel X-25M 80Gb SSD, 3x Caviar Black 1TB R5 2x Lite-On DVD Windows 7 Corsair HX1000W 
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Cooler Master Cosmos S 
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