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Raid 0 vs. Raid 1

post #1 of 16
Thread Starter 
You can see my system specs below. I couldn't find another appropriate forum, so I'm posting here.

Which format will give me the best gaming performance? Raid 0 or Raid 1, and why? Thanks.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 Intel Core 2 Duo @ 3.4ghz. Vcore 1.425 ASUS P5W64 WS PRO ASUS 5870 1GB V2 8GB G.SKILL DDR2 800 
Hard DriveOSMonitorKeyboard
2 74 gig WD RAPTOR RAID 0 / 1 Terrabyte ext. WD Windows 7 64-bit Home Premium LG L227WTG/Viewsonic VX910 LCD Generic 
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OCZ GameXStream 750W Antec P180 Black Logitech G9 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 Intel Core 2 Duo @ 3.4ghz. Vcore 1.425 ASUS P5W64 WS PRO ASUS 5870 1GB V2 8GB G.SKILL DDR2 800 
Hard DriveOSMonitorKeyboard
2 74 gig WD RAPTOR RAID 0 / 1 Terrabyte ext. WD Windows 7 64-bit Home Premium LG L227WTG/Viewsonic VX910 LCD Generic 
PowerCaseMouse
OCZ GameXStream 750W Antec P180 Black Logitech G9 
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post #2 of 16
Ahhh... RAID0 is for performance obviously. RAID1 is for redundency. You already have it set up... I don't understand why the question needs to be asked? (BTW, there is a HD forum)

http://www.acnc.com/04_01_00.html
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
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Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
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Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
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post #3 of 16
Raid 0 for performance

Raid 1 mirrors each HD, you use it only to make sure your data is robust. Raid 0 is best for
gaming and performance. It stripes each HD, uses both for reading and writing. Although a little
riskier not much more so.

All other Raid configurations are not as fast as Raid 0.
945 Quad
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X4 945 3GHz 95W (c3) Asus Crosshair III Formula Asus 5850 DirectCU 1GB Mushkin Ridgeback 2x2GB DDR3 
Hard DriveOptical DriveOSMonitor
WD Caviar Black 1TB, IoSafe Solo 1TB External LITE-ON Black 24X DVD Windows Home 7 x64 Asus 27" Wide 2ms 
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Ideazon Merc Stealth Seasonic X650 gold certified, APC UPS 1500LCD 865W Antec P183 dual chamber Logitech G5 
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945 Quad
(13 items)
 
  
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Phenom II X4 945 3GHz 95W (c3) Asus Crosshair III Formula Asus 5850 DirectCU 1GB Mushkin Ridgeback 2x2GB DDR3 
Hard DriveOptical DriveOSMonitor
WD Caviar Black 1TB, IoSafe Solo 1TB External LITE-ON Black 24X DVD Windows Home 7 x64 Asus 27" Wide 2ms 
KeyboardPowerCaseMouse
Ideazon Merc Stealth Seasonic X650 gold certified, APC UPS 1500LCD 865W Antec P183 dual chamber Logitech G5 
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table 
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post #4 of 16
Neither will improve your FPS. RAID 0 stripes the data across both drives, increasing speed, but also increasing the chance of failure. RAID 0 mirrors the data across both drives, so if one fails, you've got the data on the second disk.
post #5 of 16
But if you have games like Oblivion, that loads often, Raiding your drives will help load times.

Well Raiding drives helps no matter what - much better HD performance for much lower costs
per Gig for almost all HD events (there are some exceptions but overall gains outweigh losses).
945 Quad
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X4 945 3GHz 95W (c3) Asus Crosshair III Formula Asus 5850 DirectCU 1GB Mushkin Ridgeback 2x2GB DDR3 
Hard DriveOptical DriveOSMonitor
WD Caviar Black 1TB, IoSafe Solo 1TB External LITE-ON Black 24X DVD Windows Home 7 x64 Asus 27" Wide 2ms 
KeyboardPowerCaseMouse
Ideazon Merc Stealth Seasonic X650 gold certified, APC UPS 1500LCD 865W Antec P183 dual chamber Logitech G5 
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table 
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945 Quad
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X4 945 3GHz 95W (c3) Asus Crosshair III Formula Asus 5850 DirectCU 1GB Mushkin Ridgeback 2x2GB DDR3 
Hard DriveOptical DriveOSMonitor
WD Caviar Black 1TB, IoSafe Solo 1TB External LITE-ON Black 24X DVD Windows Home 7 x64 Asus 27" Wide 2ms 
KeyboardPowerCaseMouse
Ideazon Merc Stealth Seasonic X650 gold certified, APC UPS 1500LCD 865W Antec P183 dual chamber Logitech G5 
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table 
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post #6 of 16
get 2 more of your HDD's and go raid 10
post #7 of 16
Raid 10 is really the best. Raid 0 is for speed, but if one drive goes out, you lose everything. Raid 1 is for safety. It mirrors. Obviously, its a lot slower than raid 0.

RAID 0 is best if you have a PC that needs to access your hard drive often.
Hatredcomputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6T6 Revolution eVGA 8800GTS (for now) RipJaws 6GB DDR3 2000 
Hard DriveOptical DriveOSMonitor
2x Samsung 500GB RAID0 Plextor PX755SA 7 x64 Samsung 24" 
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Arctosa Corsair HX750 Modular Silverstone TJ07-BW Razer Lachesis 
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Hatredcomputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6T6 Revolution eVGA 8800GTS (for now) RipJaws 6GB DDR3 2000 
Hard DriveOptical DriveOSMonitor
2x Samsung 500GB RAID0 Plextor PX755SA 7 x64 Samsung 24" 
KeyboardPowerCaseMouse
Arctosa Corsair HX750 Modular Silverstone TJ07-BW Razer Lachesis 
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post #8 of 16
before you do anything i recomend you read This
post #9 of 16
Hi guys, you seem to all have a unanimous agreement that raid 0 far surpasses raid 1. I believe that in most gaming system, the other would be true. I'll try to explain what makes me think this, and I'd appreciate a criticism of it. My initial assumption is that read speeds are infinitely more important than write, because games load data much more often than write it.

Raid 0 is striped. Every read has to seek on both drives (meaning seek time is the max of both, every time) and then read roughly half the data. In the asymptotic, this is twice as fast as reading off a single disk.

Raid 1 is mirror. Every read can chose either inactive disk to grab a block from. Whichever disk can reach the data first will return the data. This is immediately and always twice as fast as reading off a single disk for any file larger than 1 block.

Why is raid 0 so much better than raid 1 in the read case? Seems like Raid 1 should in the worst case be just as rast as Raid 0, and in the average case it should be faster.

I'm familiar with the nitty-gritty of disk I/O and would appreciate a highly technical response.
post #10 of 16
Quote:
Originally Posted by Dman478 View Post
Hi guys, you seem to all have a unanimous agreement that raid 0 far surpasses raid 1. I believe that in most gaming system, the other would be true. I'll try to explain what makes me think this, and I'd appreciate a criticism of it. My initial assumption is that read speeds are infinitely more important than write, because games load data much more often than write it.

Raid 0 is striped. Every read has to seek on both drives (meaning seek time is the max of both, every time) and then read roughly half the data. In the asymptotic, this is twice as fast as reading off a single disk.

Raid 1 is mirror. Every read can chose either inactive disk to grab a block from. Whichever disk can reach the data first will return the data. This is immediately and always twice as fast as reading off a single disk for any file larger than 1 block.

Why is raid 0 so much better than raid 1 in the read case? Seems like Raid 1 should in the worst case be just as rast as Raid 0, and in the average case it should be faster.

I'm familiar with the nitty-gritty of disk I/O and would appreciate a highly technical response.
That's pretty good, I agree. However you can kiss half your capacity good-bye of course. Not something I'm eager to do over a modest (at best) performance increase over RAID 0.
    
CPUMotherboardGraphicsRAM
Xeon E5645 Asus Rampage II Gene eVGA GTX460 SSC 3x4GB Corsair Dominator PC3-12800 
Hard DriveHard DriveHard DriveOS
Crucial C300 64GB Seagate Momentus XT 750 Western Digital GP 2TB EARS Windows 7 Premium 
MonitorKeyboardPowerCase
Asus VE278Q DSI SMK-88 Seasonic X-660 Lian Li U6B 2011 SE 
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CPUMotherboardGraphicsRAM
Xeon E5645 Asus Rampage II Gene eVGA GTX460 SSC 3x4GB Corsair Dominator PC3-12800 
Hard DriveHard DriveHard DriveOS
Crucial C300 64GB Seagate Momentus XT 750 Western Digital GP 2TB EARS Windows 7 Premium 
MonitorKeyboardPowerCase
Asus VE278Q DSI SMK-88 Seasonic X-660 Lian Li U6B 2011 SE 
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Logitech G500 KAI.g3 HIEN - HARD 
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