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HDD RAID 0 V.S. SSD

post #1 of 32
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I will be doing my first build soon and I have a question. I need space and games. I will be doing recording with fraps. So, I need the space of an HDD but, I need to play Steam and I need the speed of an SSD what do I do? I can run two HDDS in RAID 0. I just need the space and I also need the speed so, what do I do? I also, can't pay for an SSD over 120 GBs and that is stretching it. Will RAID 0 in about 100 MB/S HDDs (2 Drives) give me good gaming performance?
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post #2 of 32
I play alot of games off of my RAID0 setup and don't notice much differance at all. I also have a Vertex3 SSD which is my OS drive and BF3 is on it and maybe one other game. I'll use Steam Mover to move Steam games on and off of it. Just if your going with the RAID setup, you really need a backup drive.
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post #3 of 32
Thread Starter 
DO you see a difference between the SSD and HDD in games.
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post #4 of 32
I did have a RAID 0 array for a while. I had two 320 gig Seagate Barricudas in and it matched its theoretical speed at like 250MB/s it was fast, but for some reason, the new OCZ Soild 3 120 Gig SSD i have blows it out of the water at only 210 MB/s. Games load so much faster than the RAID array did, windows boot is <1 minute including spinning up my 1TB external Seagate FreeAgent. If you have the money, and especially if your computer's mobo will have native SATA III then go SSD, even a lower end SSD like the Solid 3 ( the lowest of OCZ's line) will beat the RAID array.

EDIT: just remember, if you want to find the theoretical max of your array, use this formula.

(Speed of the Drive) X (The Number of Drives) X (.8) = Theoretical Max of an HDD RAID 0 Array.

the .8 is so you don't have to do subtraction (stands for 80% scaling), you need to take 20% off the total speed for HDD Arrays.

if you have a RAID Array of SSD's I'm pretty sure that scales at 90-95% instead of just 80%. To use the formula above for SSD's you'd just put a .9 or .95 instead of .8.
Edited by Tucker - 1/30/12 at 5:43pm
post #5 of 32
Quote:
Originally Posted by Ted Muffin View Post

DO you see a difference between the SSD and HDD in games.

Games load faster and FPS is more consistent when loading textures from a SSD. RAID 0 F3's in games didn't even make a big difference.

Hard drives only play a small role in games, what you should be concerned about is your gfx card. You can run on a 1TB drive fine but without a good gfx card you will get crap FPS.

If you can get a single HDD and a 64GB SSD for your OS drive, you will have over 30GB of free space after you set up your system with all your apps and such to put games on.
post #6 of 32
Thread Starter 
Quote:
Originally Posted by Tucker View Post

I did have a RAID 0 array for a while. I had two 320 gig Seagate Barricudas in and it matched its theoretical speed at like 250MB/s it was fast, but for some reason, the new OCZ Soild 3 120 Gig SSD i have blows it out of the water at only 210 MB/s. Games load so much faster than the RAID array did, windows boot is <1 minute including spinning up my 1TB external Seagate FreeAgent. If you have the money, and especially if your computer's mobo will have native SATA III then go SSD, even a lower end SSD like the Solid 3 ( the lowest of OCZ's line) will beat the RAID array.

When I record fraps (I will record fraps to the HDD) will the computer be Bottlenecked?
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post #7 of 32
Quote:
Originally Posted by Ted Muffin View Post

I will be doing my first build soon and I have a question. I need space and games. I will be doing recording with fraps. So, I need the space of an HDD but, I need to play Steam and I need the speed of an SSD what do I do? I can run two HDDS in RAID 0. I just need the space and I also need the speed so, what do I do? I also, can't pay for an SSD over 120 GBs and that is stretching it. Will RAID 0 in about 100 MB/S HDDs (2 Drives) give me good gaming performance?

Raid 0 is completely misunderstood on this forum. Gaming requires low access times and extremely fast random access, none of which RAID will hold any candle to an SSD. RAID 0 is nice for tossing around huge editing files, but that's about all it'll really help. Normal desktop usage doesn't improve from increased sequential read/writes. Put your most frequently played games on an SSD and toss everything else on a single mechanical drive. Forget about raid unless you're wanting to mirror.
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post #8 of 32
Quote:
Originally Posted by Sean Webster View Post

Games load faster and FPS is more consistent when loading textures from a SSD. RAID 0 F3's in games didn't even make a big difference.
Hard drives only play a small role in games, what you should be concerned about is your gfx card. You can run on a 1TB drive fine but without a good gfx card you will get crap FPS.
If you can get a single HDD and a 64GB SSD for your OS drive, you will have over 30GB of free space after you set up your system with all your apps and such to put games on.

Single biggest upgrade for any MMO is an SSD. Being able to load new textures quickly helps IMMENSELY.

@OP: Get the SSD. Seriously.
 
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post #9 of 32
Quote:
Originally Posted by Ted Muffin View Post

When I record fraps (I will record fraps to the HDD) will the computer be Bottlenecked?

you have to realize for SATA, it is SERIAL ATA, it means it can only go in one direction at a time. It may not necessarily create a visible bottleneck, but it will. once you start recording, you may start to get I/O lag, it will be the little lag spots in game where it freezes because its waiting on your HDD. my recommendation would be to have a completely different drive for FRAPS recording. If you're going to record FRAPS i wouldn't even use a RAID array, i'd use 2 disks in JBOD. One for Boot-OS/Games/Apps, and the other for FRAPS recording.
Edited by Tucker - 1/30/12 at 5:49pm
post #10 of 32
The only downside to the single SSD will be the write speed. (This may have changed w the new SSDs)

I have a second gen Vertex2 and the write speeds were terrible. While I'm not sure of the requirements for FRAPS, was is a big hit doing CAD, photo, or any other work with large files.

A friend of mine and myself have gone from SSD to multiple drive RAID0 arrays to get around that. I run 6 short stroked RE3 250s, he runs 4 Black 1TBs. Both beat the SSD in write.

All depends on your goals....

--Alex
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