On Dec 6, 2007, at 4:01 AM, Dino Vliet wrote:

Hi folks,

I've bought my new hardware and want to give this another try.
On the documentation sacttered around on the net I read that
it's better to have 3 harddisks where one is for the main os
and the other two are mirrored in stead of a situation where
the OS resides on one of the two mirrored disks.
Can you give me some advice on this?
I have three identical seagate harddisks and want to put two
in a mirror setup with the OS on it, and use the other as
spare drive, in case sonmething goes wrong.

Thanks in advanced
Dino Vliet


We're running all of our firewalls now with gmirror. Our setup uses a hot-swap SCSI setup, whereas you're using ATA disks. Keep in mind that, to remove the drives, you'll more than likely need to shut down the system. Have the third drive in there as a back up will certainly buy you time.

Follow the how-to I've written at https://www.secure-computing.net/wiki/index.php/Gmirror , and simply don't do any configuration on the third drive in the system. When one fails, you'll then remove, or 'forget' the failed drive, and add in the hot-spare you've got in the system.

Eric F Crist
Secure Computing Networks

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