PCI ATA 66 RAID size limit?

I was wondering what the max hard drive size is for a PCI ATA 66. And can you make a larger volume via RAID 0 that exceeds that limit? For example, can you combine two 120GB physical disks into a single RAID volume on the ATA66 interface, or will the combined RAID volume size also be limited to <137GB?
On my system I use a single partition 120GB drive, and backup nightly with DejáVu to another 120GB drive, both are bootable 10.4 sytems. I am about 80% capacity now, and will be planning on adding some space in the future, so I was thinking about getting an external 250GB FW bootable drive for backup, and RAIDing the two 120GB drives into a single 240GB volume, if possible on a single cable on a PCI ATA 66 card.
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G3 DT/SonnetEncoreZIFG4/1GHz/768MB/WingsAV/DVR-106D/psc750xi/graphire4-6x8 Mac OS X (10.4.8) TempoUltraATA66/120GB Maxtor/120GB Seagate;TangoUSB/FW;ATI9200/204B/172N

The article cited below states that the ATA drive size limit is 200 GB for your Mac.
86178- Macintosh: Using 128 GB or Larger ATA Hard Drives
The last reference it cites talks about Volume sizes, and that is the important distinction for RAID. With most RAID schemes, you are creating a larger (or mirrored) Volume out of two smaller Drives (or portions of Drives).
I suggest you reconsider putting both drives on the same cable. Because of the way ATA/IDE works, there is NO Overlap in commands on a single cable. Each drive must initiate the seek, wait milliseconds for it to complete, and transfer the data in its entirety before any other transaction can begin on that cable. So one drive waits for the other to complete before it even starts its seek.
Users at MacGurus who are posting their whiz-bang RAID performance numbers in their forum are all using SCSI (which supports overlapped commands and overlapped seeks) or have the two drives on two cables. This allows one seek to start, the other seek to start on the other drive, the wait for milliseconds to overlap each other, and then transfer1 followed by transfer2, or possibly even some overlap in the transfers.

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SYS INFO
MacPro 5,1
2 X 6 Core 2.93 GHz Xeon
Mac Pro RAID Card
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Bay 2: 450GB Seagate Cheetah SAS - Raid set 1
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One of the drives is (connected via USB3... )
Drives are drives, and SATA. Know what you meant.
Some people have taken their internal drives, put in a USB device, formats properly, then return to use internally where the full capacity is seen and not an issue.
Why is DU treating internal drives on the SATA controller used an issue? really strange - and bad. But then Apple Pro RAID controller also limited drives to 2.2TB and would format as 800GB otherwise if they were larger.
Still points to the drive case.
And in using 3rd party PCIe USB3 controller, that could play a role as well.

Is there a size limit on internal HD? iBook G4 1Ghz

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Shiftless:
Is there a size limit on the internal HD on the iBook?
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If size is not the problem, it seems that maybe it would help if I somehow pre-install the system onto the 160Gb before I physically put it into the iBook.
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Formatting, Partitioning Erasing a Hard Disk Drive
Warning! This procedure will destroy all data on your Hard Disk Drive. Be sure you have an up-to-date, tested backup of at least your Users folder and any third party applications you do not want to re-install before attempting this procedure.
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cornelius

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Hi,
I have received some information from the raid unit vendor. They say:
---------- Start of quote ----------
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---------- End of quote ----------
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No Raid BIOS on nforce 650i (x4 PCI-express raid card)

Motherboard Model: MSI P6N SLI
BIOS Revision Number (if known): 2.3
CPU/Speed: 3000Mhz
RAM Manufacturer/Type/Module Size: 4x G.Skill P2-6400CL5d-2GBHQ (DDR2-800 1GB sticks)
CDRW/CDROM/DVD Manufacturer and Spec: none (external USB)
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Video Card: Manufacturer and Type: Nvidia Geforce 8600 GT
Sound Card: Manufacturer and Model: onboard realtek
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Operating System: Linux-2.6.22.3
Anything else you think is relevant: Using a PROMISE SuperTrak EX8350 RTL PCI-Express x 4 SATA II Controller Card.
Ok, here is my problem:
I can not, for the life of me, get this PCI-Express raid card to show the raid's BIOS screen (or get my BIOS to see the controller so I can boot off it). Basically this is needed to setup the array, see the array status when the system boots, and boot off the array, etc.. If I was running windows I would be totally screwed for booting off the array but with linux I can boot off of it as I can load the kernel (only the kernel) with the drivers on it from another boot drive and boot off the array.
I had to put the raid controller in another one of my comps (had to put a PCI vid card in that one as it only had one PCI-E x16 slot) to setup the initial array. The controller works perfectly fine with this mobo (as it is detected/acessible from linux) the only problem is when my system POST's I have no way to manage the RAID array which is quite annoying. I already tried updating to the newest BIOS for my mobo and I think it is something specific with this mobo or something as I had no problems using my sister's comp which is an AM2 socket mobo (also nforce chipset) which is the same brand (MSI).
Some things I have tried already:
Upgrading to the newest BIOS version
Taking out the geforce 8600 gt and putting in a PCI vid card and trying the raid controller in each of the x16 PCI-E slots (running in x8 mode because the board is set to SLI mode (the raid controller requires atleast a x4 slot).
Any ideas or am I SOL?
Also, maybe this should be in the BIOS section?

Just thought I would mention, this board as listed as a compatible product for my mobo here:
http://global.msi.com.tw/index.php?func=prodtestreport&prod_no=1141&maincat_no=1&cat2_no=170&cat3_no=#menu
If you click on SCSI controllers it gives you a link to here:
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Harddrive Size Limit?

Hello,
I was wondering what the size limit of a HD for PB G4 17-in? I know there are some good sized HD out there and I am looking to upgrade.
Thanks!

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Hopefully this solved your problem. (see button above this message)

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I have a G4 Silverdoor with dual 1.25 GB processors. Currently, it has three internal drives, 120 GB each. Is there a size limit to the fourth drive? I was thinking about getting a 400 or 500 GB internal drive.

Is this your system? Mac Upgrades
They say:
Internal Hard Drive Upgrades
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PCI ATA 66 RAID size limit?

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