Date: Tue, 22 Jul 2008 15:38:19 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: Peter Jeremy <peterjeremy@optushome.com.au>, Remko Lodder <remko@freebsd.org>, src-committers@freebsd.org, "current@freebsd.org" <current@freebsd.org> Subject: Re: geom_mirror silently upgrading metadata Message-ID: <863am2ox84.fsf@ds4.des.no> In-Reply-To: <20080722125024.GE3241@garage.freebsd.pl> (Pawel Jakub Dawidek's message of "Tue\, 22 Jul 2008 14\:50\:24 %2B0200") References: <200807131153.m6DBrDkX067657@repoman.freebsd.org> <487C6A86.20508@FreeBSD.org> <20080715095139.GA62764@server.vk2pj.dyndns.org> <20080718070624.GC1976@garage.freebsd.pl> <86fxq2ozph.fsf@ds4.des.no> <20080722125024.GE3241@garage.freebsd.pl>
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Pawel Jakub Dawidek <pjd@FreeBSD.org> writes: > ZFS does exactly 3. What you are suggesting could be done by not loading > geom_mirror.ko module and mounting file system read-only from one of the > mirror components. [...] Would it really be that hard for geom_mirror to translate enough of the old metadata to access the mirror r/o, and only perform the upgrade on explicit request? DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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