2007-02-21 08:25:31

by Marc Perkel

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Subject: Need a little help with Software Raid 1

I have a partition that used to be part of a software
raid 1 array. It is now loaded as /dev/sda3 but I'd
like to mirror it to /dev/sdb3 without losing the data
on the drive. I'm a little nervous about how to set it
up as I don't want to wipe out the data.

How do I do this? Using FC6 and up 2 date software.

Thanks in advance.




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2007-02-21 11:06:54

by Sander

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Subject: Re: Need a little help with Software Raid 1

Marc Perkel wrote (ao):
> I have a partition that used to be part of a software
> raid 1 array. It is now loaded as /dev/sda3 but I'd
> like to mirror it to /dev/sdb3 without losing the data
> on the drive. I'm a little nervous about how to set it
> up as I don't want to wipe out the data.
>
> How do I do this? Using FC6 and up 2 date software.

Create a degraded raid1 on /dev/sdb3, mount the degraded raid1, copy the
data over from /dev/sda3 to the degraded raid1, umount /dev/sda3 and add
it to the degraded raid1 to make it non-degraded.

With kind regards, Sander

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