Date: Tue, 26 Aug 2008 11:24:17 -0400 (EDT) From: John R Levine <johnl@taugh.com> To: David Adam <zanchey@ucc.gu.uwa.edu.au> Cc: freebsd-doc@freebsd.org Subject: Re: Update to section 19.4 on disk mirroring Message-ID: <alpine.BSF.1.10.0808261121050.16714@simone.iecc.com> In-Reply-To: <alpine.DEB.1.10.0808262243300.3593@martello.ucc.gu.uwa.edu.au> References: <alpine.BSF.1.10.0808252313150.13542@simone.iecc.com> <alpine.DEB.1.10.0808262243300.3593@martello.ucc.gu.uwa.edu.au>
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>> setting up bootable gmirror disks isn't wrong, it's seriously suboptimal since >> it involves a needless full copy of a disk, which takes hours rather than five >> minutes if you do it the easy way. > > In my case I found it to be an almost perfect procedure, because it > doesn't require bootable CD media. The disk copy in occurs while > the system is multiuser, and if you ignore the instruction to drop to > single user to start the resync, it'll still take Not That Long. It doesn't strike me as a good idea to do the first disk copy as multiuser unless you don't care about losing files that change during the copy. I agree that you can do the insert and resync in multiuser. > I don't suppose many people are in the position of not being able to boot > a fixit CD though. They're pretty easy to download and burn, and if you care enough about your system to do disk mirrors, I expect you'll probably keep a set of CDs around in case of non-hardware disasters. Regards, John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY "I dropped the toothpaste", said Tom, crestfallenly.
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