OS drive is not DISK 0 anymore in Disk Management

I have a HP Proliant ML330 G3 server that has Windows 2000 SP4 installed on a SCSI hard drive. The Boot.ini is the following: multi(0)disk(0)rdisk(0)partition(1)

I added a PATA hard drive to the server and turned on the PATA Raid controller. Before I did this the only drive in the server was the SCSI drive.

After installing the driver for the PATA controller and restarting the server, I went in to Disk Management. It showed that the OS drive on the SCSI HD as DISK 1 and the new PATA HD as DISK 0.

I am guessing that before I added the new PATA HD, that the OS drive was DISK 0. Since the OS drive is not Disk 0 anymore does this mean I need to change the Boot.ini in any way?
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Adrian CantrillSolutions ArchitectCommented:
if the server already shows the OS disk as " It showed that the OS drive on the SCSI HD as DISK 1 " and it boots without issues ... you shouldnt need to make any changes when adding the PATA disk, at least we have never had that issue.

As with all things of this nature - go with the path of least change first... install the disk, attempt a boot, if it works fine, if not make the change.

LeonGarfieldAuthor Commented:
Can it be that the change of the OS drive from Disk 0 to Disk 1 occurred after the server already booted?

The PATA disk is already installed. I haven't yet initialized or partitioned it.

What if it doesn't boot?

Does the following "multi(0)disk(0)rdisk(0)partition(1)" by definition point to Disk 0?

Adrian CantrillSolutions ArchitectCommented:
If it doesnt boot then you can remove the PATA disk and/or disable the controller ( which will regress the disk and controller to its previous config and make the change).

Generally the change is controller/disk/partition only occurs during boot - its not something that will change significantly between reboots. certainly not the boot partition/drive.

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LeonGarfieldAuthor Commented:

I partitioned and formatted the drive. Then I rebooted the server. It came up without a problem.
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