Date: Mon, 24 Feb 2014 17:15:13 -0500 From: Michael Sierchio <kudzu@tenebras.com> To: Chris Stankevitz <chrisstankevitz@gmail.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: gptids are not symlinks to /dev/da* Message-ID: <CAHu1Y72kezZedfFkE6n%2BigU7Pz6Oh0XFRRs42kG=rDBHpNQgPw@mail.gmail.com> In-Reply-To: <CAPi0psubEgnwvircnS7MqFWCWCNQaazDOk9D8GUkB2qUXVAvew@mail.gmail.com> References: <CAPi0pstLDDzLvuzzcPuN1LbgrAjiTu=vRAyxxphgcimuScMoNA@mail.gmail.com> <alpine.BSF.2.00.1402241208090.2118@wonkity.com> <CAPi0psubEgnwvircnS7MqFWCWCNQaazDOk9D8GUkB2qUXVAvew@mail.gmail.com>
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On Mon, Feb 24, 2014 at 4:50 PM, Chris Stankevitz <chrisstankevitz@gmail.com> wrote: > Okay, although I am a bit surprised to hear that a GPTID refers to a > partition. I'm using FreeNAS and I thought I instructed the zpool to > consist entirely of unpatitioned disks. I gather that FreeNAS is, > somewhere in the process, creating partitions which triggers > "structure creation" which creates unique GPTIDs. It is an unfortunate feature of FreeNAS - it creates gpart tables and reserves 2GB of every single disk for swap, leaving the rest for your use (as part of a ZFS pool, for example). That's a flawed assumption, which makes it less useful for enterprise deployment. My box has 48 drives, and I know where they are, and I don't want a disk to have an identity other than its position in the array. Doubly annoying because ZFS really performs better when you present whole, raw disk devices to it instead of partitions. - M
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