RAID 0 Strip Set not Booting iMac i7 (2xSSD)

[symbology]

So, I put my two SSD's in and since I was having a problem with the non-boot disk dropping off when in sleep mode (See Here) I decided to put the two disks in Raid 0 and see what happens.

Well, I am not able to get the Raid 0 disk to boot. I can read it and it is mounted when I boot into the original 1TB HD, but the OS does not load when trying to boot from the raid set. I tried to reboot and use the "option" key and the raid disk shows up, but when I try to boot from it I get a failure every time.

Setup:
OEM HD in stock location
SSD #1 in SSD location next to stock HD
SSD #2 in Optical Bay
I am using SuperDuper for disk cloning.

When the SSD's were not in a raid set, I could boot from either one.

Any ideas as to what the issue is?

 

[Hellhammer]

Try doing a clean install of OS X to the RAIDed SSDs

 

[symbology]

Try doing a clean install of OS X to the RAIDed SSDs

Yeah, I was thinking of giving that a try. I will try that tonight when I get home. Thanks...

 

[wirelessness]

I assume you used Disk Utility to create the RAID set. This should work fine. I would try a clean install as mentioned above. Or use a third party tool to view the partitions. It's possible the partition table is messed up. I use gparted or parted magic live cd to view and or create aligned partitions just to be sure.

 

[symbology]

Yes, it is an OS software raid setup using Diskutil

 

[symbology]

So, a fresh install did the trick. It actually just fixed the system as all my installed apps and settings are still in place.

Thanks guys......

 

[digitalhen]

how's the speed vs a single ssd?