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Raid problem

By Trish44 ·
I have been trying to set up Raid on a Windows XP system with 2 hard drives, both are Seagate, 120G & 200G. The operating system is on the 120G drive. I got through all of the setup & when I try to boot with the Raid enabled in the bios I get the error message, "NTLDR is missing, press any key to restart." This just happens over & over until I go back into the bios & disable the Raid option. I was trying to set it up using mirroring. I'm new to Raid, what could I be doing wrong?

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by CG IT In reply to Raid problem

ok first things first, in any RAID array, the array size will the the sum total of the smallest drive. you have a 200GB and a 120GB therefore the sum total of 120GB X2 or 240GB total. that means your wasting virtually 1/2 the storage space on the 200GB drive.

Second RAID is mass storage therefore Windows sees the RAID array as a SCSI type of drive. The BIOS of the motherboard has boot options and first looks to boot to off a floppy, then CD then IDE Controllers. RAID arrays in the BIOS is classified as boot SCSI. Therefore you have to change the boot sequence/order from boot HDD-0/1/2/3 to Boot SCSI.

Third is Windows also sees RAID arrays [SATA]as SCSI drives. Therefore when installing Windows you have to install the SATA drivers before Windows is installed by pressing F6. If you didn't do that, you have to start from scratch.

The NTLDR message is that Windows can not find a bootable partition [your RAID array of drives]. That means that the BIOS isn't reporting to Windows where the bootable partition is [the SATA RAID array]. That's either the boot sequence wasn't changed to boot SCSI or the RAID array wasn't created properly in th SATA RAID array utility of the BIOS [either CTL+F or ALT+F during POST.

Recreate the RAID 1 array and sync the drives, change your BIOS boot sequence to boot SCSI or Boot other [if that is an option]. Install the Windows CD and press F6 when it asks if you need to install mass storage device drivers [you do].

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by ctmoore1998 In reply to Raid problem

You have to turn Raid on in the BIOS then LOAD the RAID drivers during XP installation you will hit F6 to install additional drivers. Your MB should have the disk or a utility on CD to create the Floppy to load the RAID drivers for XP. Then when you boot you will not get the NTLDR msg.

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