Re: howto software raid under FreeBSD?

From: Emanuel Strobl (Emanuel.Strobl_at_gmx.net)
Date: 10/31/04

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    To: freebsd-questions@freebsd.org
Date: Sun, 31 Oct 2004 22:34:32 +0100

    Am Sonntag, 31. Oktober 2004 19:42 schrieb Matthias F. Brandstetter:
    > ---------- quoting Emanuel Strobl ----------
    >
    > > You can use 'atacontrol detach' then powerdown, replace the drive and
    > > after booting you can 'atacontrol addspar ar0 ad6' (or what ever drive
    > > and array failed) and 'atacontrol rebuild ar0'.
    >
    > Problem is, that man page says "atacontrol rebuild" is only valid on RAID
    > capable ATA controllers. But since I have no such controller, I can't use
    > this command.

    I don't know why this is in the man page, last time I read it (some years ago)
    it was not in there.
    You can use the rebuild command also on non-raid controllers, at least it was
    possible for me when I did some tests about 3 months ago.
    As I can see you're considering gmirror, perhaps that's the better solution
    for you. In all cases, simulate a drive failure, so you do know what to do
    when one drive really fails.

    -Mano

    >
    > How can I rebuild the array on a normal ATA controller?
    > Greetings, Matthias

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