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Date:      Mon, 19 Sep 2011 10:49:56 -0700
From:      Freddie Cash <fjwcash@gmail.com>
To:        Ben Stuyts <ben@altesco.nl>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: ZFS auto expand mirror
Message-ID:  <CAOjFWZ5jfQqCEzrgrqmNtLki4%2BzPwuno6dPFRhfM-qYdEM8Lfg@mail.gmail.com>
In-Reply-To: <9774D03B-A8C7-48DE-9BC4-528DD4134787@altesco.nl>
References:  <9774D03B-A8C7-48DE-9BC4-528DD4134787@altesco.nl>

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On Mon, Sep 19, 2011 at 10:08 AM, Ben Stuyts <ben@altesco.nl> wrote:

> I want to expand an existing mirror by replacing the existing drives with
> bigger ones. This is on:
> FreeBSD xxx 7.3-STABLE FreeBSD 7.3-STABLE #2: Mon Sep 20 18:36:08 CEST 2010
>     root@xxx:/usr/obj/usr/src/sys/xxx  amd64
>
> # zpool status home
>  pool: home
>  state: ONLINE
>  scrub: scrub completed after 2h0m with 0 errors on Mon Sep 19 18:25:45
> 2011
> config:
>
>        NAME        STATE     READ WRITE CKSUM
>        home        ONLINE       0     0     0
>          mirror    ONLINE       0     0     0
>            ad5s1a  ONLINE       0     0     0
>            ad7s1a  ONLINE       0     0     0
>
> Will this version of FreeBSD auto-expand to the new, bigger drive size once
> they are both replaced? I did not see the autoexpand property in this pool.
> zpool is v13, zfs is v3.
>

No.  You will need to reboot the system in order for the extra space to
become usable in the pool.  Or, if none of the OS is installed on the pool,
you can export/import the pool to make the new space available.

-- 
Freddie Cash
fjwcash@gmail.com



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