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primary mirrored disk failure

By Seadogs ·
We have a server, nt server 4.0 sp 5, that has it's boot partitioned mirrored on two fat drives. The original drive is having memory problems, so we want to replace it with a new one. We broke the mirror, and the primary drive is now assigned letter c: and the secondary is e:. We tried to use disk administrator to change c to another letter and then change e to c, but had no success. Any suggestions would be greatly appreciated.

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primary mirrored disk failure

by ejsotillo In reply to primary mirrored disk fai ...

silly question..do you have a cdrom in the machine?, if that's the case, that's the reason you can't re-name e: as d:, your cdrom already has that letter, you need to rename your cdrom first to something else, commit the change and then change your new drive to d: (I guess that's what you want?)..

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primary mirrored disk failure

by ejsotillo In reply to primary mirrored disk fai ...

also....you can never change the letter of your system files partition in NT to other than c: (it has your boot files).

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primary mirrored disk failure

by Seadogs In reply to primary mirrored disk fai ...

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primary mirrored disk failure

by Gregory W. Smith In reply to primary mirrored disk fai ...

Pull the primary, boot off the secondary. you may need a boot disk to do so. (create it first - NT Help will explain how if you are not familiar with the process)

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primary mirrored disk failure

by Seadogs In reply to primary mirrored disk fai ...

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primary mirrored disk failure

by frank.blanck In reply to primary mirrored disk fai ...

I have run into this before. Is the drive working well enough to mirror it again? If you can recreate the mirror do so. Then shut the system down, place the mirror in the slot where the bad drive is now. When the system comes back online, break the mirror. Replace the bad drive and remirror. I have done this successfully on a number of occasions. If you try to put the disk that is now e: in the system it will not recognize it as the boot disk. This is why you do not want to break the mirror.

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primary mirrored disk failure

by Seadogs In reply to primary mirrored disk fai ...

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primary mirrored disk failure

by walterzalewski In reply to primary mirrored disk fai ...

Had to do this several times, I'd suggest making the old mirrored secondary drive (the one that is still good) the new primary drive. Then mirror off from that drive. To do that, just do the following...

Get out your Emergency Repair Disk. If youdon't have one, run 'rdisk' and create one OR update your old one. You will also need your setup floppy disks, NT CD, and special drivers (i.e. SCSI). I also presume you have a good backup.....

Break the mirror, take out the bad drive, leaving the good one in, configure it on the same controller in the same position as the primary/bad drive was, i.e. primary master if ide.

Use your NT boot disks to get to the main setup screen, where it should ask you to; begin installation, begin custom installation, leave setup or repair a damaged system. Choose repair of course (press 'R').

You will get a prompt for the repair disk, insert it into floppy drive. It will read then ask for setup disk #1, give it the disk. After a little more reading it will ask you to; Inspect NT startup env., verify windows server system files, verify the boot files on c:, inspect the configuration registry files. You can go with the default selections, which is all the above.

After some more reading, itwill ask for Setup disk #3 for device drivers (and if you use SCSI, this will be the time to load the drivers), then once its finished loading the drivers, it will ask for the repair disk again.

Load the disk in, it will 'examine your drive c:' When it is done, take out all floppy disks and cd, then press 'ENTER' to restart as the prompt says.

You should now beable to boot up with your good disk as drive c:. You can then use your good copy to mirror off from.

Hope that helps and good luck.

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primary mirrored disk failure

by Seadogs In reply to primary mirrored disk fai ...

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by Seadogs In reply to primary mirrored disk fai ...

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