Date: Sat, 24 Jul 2010 12:12:37 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Freddie Cash <fjwcash@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Using GTP and glabel for ZFS arrays Message-ID: <D9C98D21-E43E-4747-8D39-71A195B6C8C6@gsoft.com.au> In-Reply-To: <AANLkTi=fMR1pQj11qCqMWwCM9nsovsm_PVh7%2BJeWF0ED@mail.gmail.com> References: <4C47B57F.5020309@langille.org> <4C48E695.6030602@langille.org> <718046944.20100723032259@nitronet.pl> <4C4A42D5.7080805@langille.org> <AANLkTi=fMR1pQj11qCqMWwCM9nsovsm_PVh7%2BJeWF0ED@mail.gmail.com>
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On 24/07/2010, at 11:55, Freddie Cash wrote: > It's theoretical as I have not investigated how to create sparse files > on FreeBSD, nor have I done this. It's based on several posts to the > zfs-discuss mailing list where several people have done this on > OpenSolaris. FYI you would do.. truncate -s 1T /tmp/fake-disk1 mdconfig -a -t vnode -f /tmp/fake-disk1 etc.. Although you'd want to determine the exact size of your real disks from = geom and use that. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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