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Mac OS X in RAID mode instead of AHCI

byusinger84

By byusinger84,
in OSx86 10.5 (Leopard)

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byusinger84
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I'm sorry to those who already saw this post, but I realized I posted in the wrong section. I really, really, really want to have my RAID 0 back with Windows, but if I put the computer in anything but AHCI mode, OSX doesn't boot. What do I need to do in order to get my RAID again? I don't care if the drives can't be seen in OSX as I have a separate drive that both OS' can share. HELP!!!

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ninetto
ninetto
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I'm sorry to those who already saw this post, but I realized I posted in the wrong section. I really, really, really want to have my RAID 0 back with Windows, but if I put the computer in anything but AHCI mode, OSX doesn't boot. What do I need to do in order to get my RAID again? I don't care if the drives can't be seen in OSX as I have a separate drive that both OS' can share. HELP!!!

 

WELL, without an additional controller, I think you are out of luck...

I think your board is similiar to my Gigabyte P35DSP3... In that case, the moment you set your ICH9r controller to "RAID" in your Bios, it is bye-bye to any chance that OSX will recognize any disks on that controller.

 

For my board I have an extra raid for XP on the second JMicron controller... naturally OSX can't read these, but they are there for XP when I boot into it. Not so happy with this JMicron controller tho: bad performance and some bugs too...

 

The best recommendation I think is similiar to a set-up by member NannyMoose: he set up an extra controller card (Raid-capable I believe) and added a Backpane so the drives are easily swappable, depending on whether you are using Windoze or OSX, you just pop in the (raid)disks you need. I think this is the deluxé way to go: and safer as you are not mixing OS and file-systems which can get "hairy"... Everytime OSX complains about my XP-raid disks and I eject them, I wonder if something is being destroyed in the process!

 

good luck,

ninetto

 

EDIT: I see your board also has the JMicron as a controller for eSata... you could set up your VistaRaid on that controller, similiar to my set-up, and use the Boot-sequence at POST to pick what system to boot to. If you get rid of the JMicron kexts in OSX -which many people advise anyway- maybe you won't be bothered with the "can't mount disks/eject" message from OSX... Not optimal but it works for me.

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wmarsh
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I'm sorry to those who already saw this post, but I realized I posted in the wrong section. I really, really, really want to have my RAID 0 back with Windows, but if I put the computer in anything but AHCI mode, OSX doesn't boot. What do I need to do in order to get my RAID again? I don't care if the drives can't be seen in OSX as I have a separate drive that both OS' can share. HELP!!!

What you want is precisely what my machine does.

http://forum.insanelymac.com/index.php?sho...86&hl=ich8r

However, mine is ich8r so you will have to adapt the solution.

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byusinger84
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What you want is precisely what my machine does.http://forum.insanelymac.com/index.php?sho...86&hl=ich8rHowever, mine is ich8r so you will have to adapt the solution.
Yeah, but isn't that just purely cosmetic? I've already read that post and from what I can tell it's just so that OSX displays the controler correctly in system info instead of "generic AHCI". Are you running in RAID mode instead of AHCI?
I have a rocketraid 3510 and vista and leopard can both see it and by the way it smokes any ob raid by at least 2 or 3 times
Yeah but how much does that cost?
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wmarsh
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Yeah, but isn't that just purely cosmetic? I've already read that post and from what I can tell it's just so that OSX displays the controler correctly in system info instead of "generic AHCI". Are you running in RAID mode instead of AHCI?Yeah but how much does that cost?

I run in raid0 mode

Nothing to do with system info. Its so I can leave my windows in the raid0 mode as shipped from factory -- share files (using ntfs-3g) -- quad boot -- and never change bios to AHCI mode.

 

Currently I have Vista on HDD1. Have 2nd partition on that drive which has my old OS X install but will replace it with FreeBSD 7.0 when release is out. 2nd HDD has XP/ OS X /Suse 10.3

 

OS X would not recognize my sata drives in raid 0 mode until i patched as above.

 

I am too lazy to reinstall XP and Vista in AHCI mode; thats why I did this.

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wmarsh
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Well, I'll give it a shot, but last time I followed those instructions it messed up OSX stopped working. Here goes nothing...

 

If anyone has a kext that already has ICH9R in it, please let me know.

Move your install to external HDD 1st.

Disk Utility "restore" tab can do that.

I don't think it will work changing it on your internal drive.

Then move it back in ich-r mode.

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