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Some dumb questions...maybe

post #1 of 2
Thread Starter 
First: Would two raptors 10k rpm sata150 in raid 0 be faster or slower than two 7200rpm drives in the same raid array (consider that they both have the same cache)?

Second: If you are using two drives in a raid 0 array and they each have a 16mb cache, do you now have 32 mb's of cache available?

Last: How much faster would 4 drives in raid 0 be than two drives (considering they are all the same drvie)? Does the rule of diminishing returns apply?

Thanks to all.
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Project Unamed
(21 items)
 
HTPC
(16 items)
 
 
CPUMotherboardGraphicsRAM
i7 920 D0 - 3913B269 Foxxconn Bloodrage Sapphire 6950 2GB flashed to 6970 BIOS 6GB G-Skill Trident 2000mhz 
Hard DriveOptical DriveCoolingOS
2x OCZ Vertex 2 160GB in RAID 0 Samsung Swiftech H2O-320 W7 Ultimate 64bit 
MonitorMonitorKeyboardPower
Acer 24" AL2423Wdr Acer 24" P243W DAS Model S & Cherry My 7000 Seasonic 860wt Platinum+ 
CaseMouseAudioAudio
In progress R.A.T. 7 Creative Titanium HD Fiio E9 
AudioAudioAudioAudio
Denon AH-D2000 AKG Q701 Grado SR225i Audio-Technica ATH-A900 
Audio
Klipsch Pro Media 2.1 
CPUGraphicsGraphicsRAM
e5700 HD6670 Ceton InfiniTV 4 4GB G-Skill DDR2 1066 
Hard DriveHard DriveOptical DriveOS
60 GB Agility 3 (OS Drive) Hitachi 3TB (TV Buffer and Recording) LG Blu-Ray Burner Windows 7 Ultimate 
MonitorCaseAudioAudio
58" Samsung Plasma DH101 Polk CS2 (Center) Polk Monitor 70 (FL/FR) 
AudioAudioAudioAudio
Polk Monitor 60 (RL/RR) Polk Monitor 40 (Surround L/R) Definitive Technology Supercube 2000 Onkyo HT-RC360 
CPUMotherboardGraphicsRAM
T9550 G51VX nVidea 260m 4GB DDR2 1066 
Hard DriveHard DriveOSMonitor
120 GB Agility 3 (OS/Programs Drive) 320GB 7200rpm (VM and Data Drive) Windows 7 Ultimate 1920 x 1080 (came with 1366 x 768) 
Case
Ventilated Bottom of Laptop Housing 
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post #2 of 2
I can only answer the 1st question cause I'm not into RAID.

2x Rapters will be faster than the 7200's because the Rapters are 10,000RPM - Which means they have faster seek times and just perform better
    
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CPUMotherboardGraphicsRAM
Core2Duo E6600 @ 3.6GHz Asus P5N32-e SLI 680i ATI HIS HD2900XT 512Mb GeIL 2GB Ultra PC6400C4 | 4-4-4-12 @ 850MHz 
Hard DriveOptical DriveOSMonitor
2x 250Gb WD [Raid 0]|400Gb Seagate 7200.10 Sony Sata Dual Layer DVD Writer Windows XP Pro 19" Asus WS (1440x900) 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX620W Modular (50A) Thermaltake Armor "Extreme Edition" Razer Copperhead Chaos Green 
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Icemat Original Clear 
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