Onboard RAID 5 with a separate OS Drive

WONTONGO

Honorable
May 28, 2013
2
0
10,510
Specs:
Intel Core i5-2550K Processor (4x 3.40GHz/6MB L3 Cache)
RAM: 8 GB [4 GB X2] DDR3-1600 Memory Module - Corsair XMS3
Video Card: AMD Radeon HD 6450 - 1GB
Mobo: ASUS P8Z68-V LX -- Lucid Virtu Technology- USB / SATA Interface
Power Supply: Noname - 450 Watt
OS Drive: 120 GB ADATA S510 SSD - Single Drive
Four (4) Seagate Barracuda 7200.14 ST3000DM001 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drives
24X Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive

I'm trying to set up RAID 5 on my system, but continue to run into issues. I've googled the crap out of this, and searched on TH but can't seem find the answers I'm looking for... probably because I'm asking the wrong questions.

My mobo supports RAID 5, but in the ASUS manual it tells me to switch the SATA settings to RAID. It does not give me the option to pick and choose drives. Once I make the setting change to RAID the Intel RAID setup utility comes up after BIOS. I set up the RAID Array easy-peasy. (Doesn't take 20 hrs either- another hint I'm doing it wrong). I do not choose my OS drive to be part of the array. Everything appears ok in the Intel RAID setup utility. I exit, and then neither Windows nor Ubuntu will start, I tried everything under the sun, but to no avail.

So I go back to BIOS change the SATA settings to IDE and low and behold both OS work without fault. However now I have no RAID.

Interestingly enough Disk Manager in Win7 now shows I have 9 TB on 3 drives so something has happened otherwise I would have 11-12TB right?

Clearly this is a lot more difficult than I had imagined. Can someone please point me in the right direction. TIA

 

WONTONGO

Honorable
May 28, 2013
2
0
10,510


The purpose is for redundancy so RAID 0 is out, and I'd like to maximize my available disk usage so I opted for RAID 5 over RAID 1 or 10.
 
It smells to me like when you installed the OS the mobo was in IDE mode. If this is the case, then the machine will not boot in SATA mode or RAID mode (which supports single drives as if they were in SATA mode).

If this is the case, let us know and we can walk you through changing the mode. Did you mention your OS version and I missed it? If not, what OS are you running?