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Add a Hard drive outside of the array

Posted on 2011-09-15
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Last Modified: 2012-05-12
Hi,

I have a machine with two sata hard drives configured in a RAID 0 configuration.  I only want the OS installed there.  I want to add a third sata drive outside of the raid to load apps.  I am guessing that I should just add the drive without doing anything to the RAID BIOS and that when I boot up I should see two hard drives... one representing my raid drives and one for the newly installed hd outside of the array.  Is that right?
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Question by:santaspores1
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David earned 250 total points
ID: 36543531
Right, but installing an O/S, presumably windows on a RAID0 is just plain wrong, wrong, wrong.  There is almost zero upside, and plenty of downside.  Plus you probably have a crappy BIOS-fakeraid controller, which means  you really won't get any significant performance benefit to even begin with.

Don't do it.
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by:santaspores1
ID: 36543848
I have a precision 690 with an onboard LSI SAS1068 controller.  It can do RAID0 or 1 and is supposed to be much better than the Dell Perc cards (presumably).
Adapter = SAS1068
PCI Address = 05:0B:00
MPT Firmware Revision = 0.10.51.00-IR
SAS Address = 50013721:9672ea00
NV Data version = 25.0D
Status = Enabled
Boot Order = 0
Boot Support = Enabled BIOS and OS

The BIOS says that the raid type is IS (which I think is their proprietary way of describing RAID0)

Are you sure that I should go through the trouble of wiping everything out and starting over?

 If I do decide to start over is it for sure that I will be able to use these drives in this system without configuring any raid setup (the hd controller is a raid controller built into the motherboard)?
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Author Comment

by:santaspores1
ID: 36544366
By the way, only the OS will be on the Raid.... so data protection doesn't matter.  But are you telling my that my machine will perform more poorly if the operating system is on a RAID 0 configuration of two drives?
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Author Comment

by:santaspores1
ID: 36545940
well... I guess that is it then... don't install Windows on Raid 0.
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