Date: Mon, 15 Dec 2008 17:09:22 -0500 From: "Zaphod Beeblebrox" <zbeeble@gmail.com> To: "Bryan Alves" <bryanalves@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS resize disk vdev Message-ID: <5f67a8c40812151409g665b81f2v261a8aa035db679b@mail.gmail.com> In-Reply-To: <92f477740812151312vccef91eu171062a50eb46ca1@mail.gmail.com> References: <92f477740812082155y3365bec7v5574206dd1a98e26@mail.gmail.com> <493E2AD2.8070704@jrv.org> <92f477740812090804k102dcb62qcd893b3263da56a9@mail.gmail.com> <5f67a8c40812151239o2b1f1f4cje7170cb1221133cd@mail.gmail.com> <92f477740812151312vccef91eu171062a50eb46ca1@mail.gmail.com>
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On Mon, Dec 15, 2008 at 4:12 PM, Bryan Alves <bryanalves@gmail.com> wrote: > In the case of option one, after this stripe of 2 raidz's is created > though, those old drives can't be pulled from the array can they? More > specifically, after we "upgrade" to what would be termed Raid50, we can't > "downgrade" back to Raid5, right? > According to the ZFS website, the ability of removing vdevs is planned but not yet implemented. You can also not shink a vdev... so you're not losing any functionality there. Even if your hardware raid supported shrinking the array, ZFS would not.
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