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Setting PCH SATA control mode = RAID (XHD) with only a single HDD

Last response: in Systems
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June 3, 2011 1:06:50 PM

Hello,

I'm putting together a new system based on the Z68 chipset (GA-Z68X-UD3H motherboard). Initially, I will have a single HDD and no SSD. I may want to add an SSD later, to take advantage of Intel's SRT; or I may want additional HDDs later -- possibly in a RAID configuration, possibly not. My questions are these:

1. Can I set the PCH SATA control mode to RAID (XHD) now, with only the single HDD.

2. If I can, what are the implications (upside/downside)?

I really don't understand the nuances of IDE, ACHI, and RAID control modes. Any help is greatly appreciated.

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a c 113 B Homebuilt system
June 3, 2011 9:22:36 PM

No, and there would be no advantage. You cannot add a second drive and magically create a RAID. You have to configure at least two drives together for RAID, and they would both need to be in the exact same state, blank. As far as adding a SSD later for caching... I don't know but imagine that can be done without loosing the data. At worst you would have to clone the drive before installing the SSD.
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June 4, 2011 11:39:49 PM

Proximon said:
No, and there would be no advantage. You cannot add a second drive and magically create a RAID. You have to configure at least two drives together for RAID, and they would both need to be in the exact same state, blank. As far as adding a SSD later for caching... I don't know but imagine that can be done without loosing the data. At worst you would have to clone the drive before installing the SSD.


My understanding is that RAID mode is needed for SRT caching to an SSD, and that you'll lose everything on your HDD if you change from ACHI to RAID when setting up SRT. Possibly there's a registry hack to work around this; but I thought I could maybe "future proof" myself by setting PCH SATA Control Mode to RAID now, even though I won't need it until later. I guess I'll just go with ACHI now, though, and worry about a solution if an when I need to change it.

Thanks for your reply.
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June 4, 2011 11:42:36 PM

Best answer selected by phramus.
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