Replacing a Raid disk

glennbtn · 10-18-2012, 05:07 AM

Hi All

Been playing with software raid 1 using this document
https://help.ubuntu.com/11.04/server...tallation.html

I have built it and all works fine. I have removed a disk and installed another 1 but what I need to know is how do I partition the new disk using the command line ready to add back in to the array

Thanks

Glenn

TobiSGD · 10-18-2012, 07:23 AM

Just clone the partitioning of the first drive to the second drive, you can use sfdisk for that:

Code:

sfdisk -d /dev/sda | sfdisk /dev/sdb

Assuming here that sda is the old disk and sdb is the new one, change according to your situation.

Warning: Double check the drive names, or you may destroy the partition table of the old disk