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Disk Mirroring

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by beighley

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I am working on a Dell Server (PowerEdge 2400 w/NT Server 4.0 sp6) that has two Hard Drives. The primary is 18GB and the second is 73GB. Both are on a RAID5 system and STRIP configured. Dell sent the server to us with the primary drive preconfigured. It comes up in Disk Administrator as looking like two seperate drives (1-4GB & 1-13GB), not as two partions on one drive. What we would like to do is add a third 18GB drive use it to mirror the primary drive. We have never done this before and want to know what to expect and what we need to do.
As it stands right now, we tried to mirror the primary drive with one of the partions on the 73GB, but that must not be possible because the "Disk Mirror" tool under options is faded.
Any help we could get would be greatly appreciated.
Thank You!

3 replies

by virzone

You could consider mirror your primary partition with Dell PERC hardware RAID card. You can check with dell representative if your server is preinstalled with Dell PERC card. If yes, all you need to do is go in to the DELL PERC bios, and format the new drive and configure it as RAID 1 with the primary drive.

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