2x SAS Fujitsu 147GB 15,000RPM Raid-0 = Slow? Input stutters when accessing for few seconds

[OmniShinzui]

New hard drives, no physical problems. Its running my main OS, Vista 64bit (for Ram purposes mostly). Raid-0 2x 167GB 15,000RPM to total 280GB of space.

128kb header space (I believe), and it performs fine unless under stress (like rendering HD Files). When accessing folders and program lists, even while surfing the internet, I get this weird stuttering with my mouse, keyboard, seems the entire desktop stutters (seems like temporary freezing) for about 5 seconds. Happens randomly tho (Thought Logitech Drivers were cause, but still after disable).

The only logical reasoning towards everything is the fact the Fujitsu is not connected/raided properly.

I have the two SAS drives in two ICYDOCK Hot-Swap bays, which convert the Dual-SATA Ports into two seperate normal SAS/SATA ports (which is great cause the LSI provides 4x Normal SATA Connectors for input). Since theres a "master' and "slave" (without using the pins), I raided as Raid-0 with only the first port of both (Port 0 and 2). It also says its not Bootable, yet its my main drive.

In the end, I know this may sound odd, but my bootup time is drastically slow due to the fact the LSI Configurer is "initializing" for 10 seconds to see the drives, and then looks for "HBA" Devices.

My specs are great, its a new rig, specs as follows:
Case: Coolsermaster Stacker
PSU: Thermaltake Toughpower 750w
Mobo: TYAN LGA771
CPU: 1x Intel Xeon LGA771 2.33GHz E5345
Ram: Corsair FBDIMM DDR2-667 2x2GB
Hard Drives: 2x SAS Fujitsu 147GB Raid-0 (Connected LSI PCI-X Controller)
Hard Drives: 2x Hitachi SATA 1TB Raid-0 (Intel Chipset Raid)
Video: Nvidia Quadro FX3500
Sound: Onboard Real-Tek HD
DVD: Lite-On SATA 18x DVD Burner
Floppy: Sony

Performance:
http://img.photobucket.com/alb..._LSILOGICLogical-1.png

any help please? Id really appreciate it. Thanks in advance

 

[OmniShinzui]

Its been about two weeks and some updates:
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1) The Initializing speed is about the same at BIOS

2) I've Directly Connected the SAS Drives by making them Internal and using a SFF-8484 to 4x SFF-8482 with Power

3) Speeds are slow, somehow HDTune says its now about 120mb/s now, and the SATA Raid-0 on the motherboard says about 90mb/s (Compared to about 150mb/s back two weeks). Somehow Im wondering if the program is a bit inaccurate under Vista 64bit.

4) The hard drives always seem to be writing/reading in the background, even if there is nothing going on. Sometimes it gets to the point where the whole system stutters for moments.
Still, some of the initial stuttering was partly caused to Logitech Setpoint, and changing the mouse to PS/2 fixed it. However, when working in Adobe Premiere and After Effects, it sometimes stutters, same with General OS use (its not just Input freezing, its all around stuttering)
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Im wondering if this is a 64-bit issue (LSI Megaraid thinks this is x84 for some reason). Maybe I should Format the Raid (and Re-Raid) since I updated the Firmware/Bios. I also think maybe the CHS Mapping should be "Alternate CHS Maping" and not "SCSI Plug and Play" (It requires a format tho). Also, Vista sees the drives as SCSI.

At the moment, Im going to shrink the vista partition and dual-boot XP to see if 32bit XP fares better. Im not sure what im doing wrong, or why its running like this. I really need someone to help/give me suggestions. Id really appreciate it Thanks.

 

[dowxp]

try not using raid 0 and see if the symptoms appear. if it does, buy a new controller, or cable. or switch the os, like you suggested. knoppix live boot?

 

[jkresh]

Vista has a lot of hard drive access for the first few weeks after the install (as it prioritizes certain things), usually that large amount of reading/writing in the background stops after a few weeks (unless your usage patterns change in which case it will start over again for a while).