GEOM - how do we replace a failing HDD?

Derek Ragona derek at
Sun Jan 29 08:23:39 PST 2006

This depends on your RAID card.  Most RAID cards report the failure of a 
drive and will do the rebuilding of a failed drive within the RAID 
firmware, outside any OS.  So if a drive fails and you replace the drive, 
on the next system boot you would have the RAID firmware duplicate the 
existing drive to the new drive.


At 11:43 PM 1/28/2006, Yance Kowara wrote:
>Hi all,
>We are trying to use GEOM to make a RAID-1 system
>(using a pair of identical IDE) and it is quite simple
>to setup.
>Does anyone know how to replace the hard disk if any
>of the two disks fails? There does not seem to be much
>clear documentation, if any exists, about this.
>More importantly, if the first HDD fails, can we just
>stick a new HDD and it would boot from the second HDD
>and GEOM will synchronise it?
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