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2X80GB RAID0 or 1X250GB 16MB cache

post #1 of 7
Thread Starter 
i have the choice for a 250GB WD 16MB cache sata2 hd for $57 and two 80GB Seagate Barracudas sata2, 8MB cache

which one will PERFORM FASTER, assuming i put the two 80GB in RAID-0? i am thinking the 250 cause of cache but im not sure.
    
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Regular PS/2 "Quietkey" 680WEchoStar+500Wforfans Uber-modded SuperTower(got for $16!)dual PSU+LEDs USB Optical Dell *ewww, dell* 
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post #2 of 7
raid array ftw. but you will have less hd space.... but thats not what youre lookin for. so.... raid ftw.
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post #3 of 7
get the 80s
    
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post #4 of 7
Thread Starter 
ok thanks, but can someone please explain to me why two 80gb 8mb cache saata2 drives in raid0 perform faster than a single 250gb 16mb cache? i dont know much about raid, i know what it is but in terms of how well it performs in different setups i dont really know. why would the 80s do better?
    
CPUMotherboardGraphicsRAM
Intel C2D e6400 GIGABYTE GA965P-S3 nVidia GeForce 7600GT 1 GB DDR 800 OCZ Gold 
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CPUMotherboardGraphicsRAM
Intel C2D e6400 GIGABYTE GA965P-S3 nVidia GeForce 7600GT 1 GB DDR 800 OCZ Gold 
Hard DriveOptical DriveOSMonitor
160GB WD DVD+-RW XP-games+Gentoo-programmin 21' Sun CRT (pwns LCD) 
KeyboardPowerCaseMouse
Regular PS/2 "Quietkey" 680WEchoStar+500Wforfans Uber-modded SuperTower(got for $16!)dual PSU+LEDs USB Optical Dell *ewww, dell* 
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post #5 of 7
You get to read from 2 disks at once, instead of 1 disk at once. The cache helps minimally anyway. A single 8MB cache drive will perform almost as well as a single 16 MB cache drive.
post #6 of 7
Thread Starter 
so is the read rate nearly doubled?
    
CPUMotherboardGraphicsRAM
Intel C2D e6400 GIGABYTE GA965P-S3 nVidia GeForce 7600GT 1 GB DDR 800 OCZ Gold 
Hard DriveOptical DriveOSMonitor
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KeyboardPowerCaseMouse
Regular PS/2 "Quietkey" 680WEchoStar+500Wforfans Uber-modded SuperTower(got for $16!)dual PSU+LEDs USB Optical Dell *ewww, dell* 
Mouse Pad
"ALGOR" POS 
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CPUMotherboardGraphicsRAM
Intel C2D e6400 GIGABYTE GA965P-S3 nVidia GeForce 7600GT 1 GB DDR 800 OCZ Gold 
Hard DriveOptical DriveOSMonitor
160GB WD DVD+-RW XP-games+Gentoo-programmin 21' Sun CRT (pwns LCD) 
KeyboardPowerCaseMouse
Regular PS/2 "Quietkey" 680WEchoStar+500Wforfans Uber-modded SuperTower(got for $16!)dual PSU+LEDs USB Optical Dell *ewww, dell* 
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"ALGOR" POS 
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post #7 of 7
Yeah, check out this thread:
http://www.overclock.net/hard-drives...id-single.html

Look at the read speeds for RAID 0 VS single drive (for similar disks of course!). It's *almost* double. You do get diminishing rates of return after 2 disks though.
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