Date: Mon, 19 Oct 2009 10:09:53 -0500 From: Adam Vande More <amvandemore@gmail.com> To: PJ <af.gourmet@videotron.ca> Cc: Johan Hendriks <Johan@double-l.nl>, Polytropon <freebsd@edvax.de>, freebsd-questions@freebsd.org Subject: Re: glabel clarification Message-ID: <6201873e0910190809h3cd4416bxaaf526008110447a@mail.gmail.com> In-Reply-To: <4ADC7BD3.30301@videotron.ca> References: <4ADC6D89.10600@videotron.ca> <57200BF94E69E54880C9BB1AF714BBCBA57086@w2003s01.double-l.local> <4ADC772F.3060303@videotron.ca> <6201873e0910190729v12f66335xe93d0c83a0ee7aee@mail.gmail.com> <4ADC794F.3050505@videotron.ca> <6201873e0910190737o1d849953h6761085ba532f8f6@mail.gmail.com> <4ADC7BD3.30301@videotron.ca>
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On Mon, Oct 19, 2009 at 9:46 AM, PJ <af.gourmet@videotron.ca> wrote: > Adam Vande More wrote: > > On Mon, Oct 19, 2009 at 9:35 AM, PJ <af.gourmet@videotron.ca > > <mailto:af.gourmet@videotron.ca>> wrote: > > > > Adam Vande More wrote: > > > On Mon, Oct 19, 2009 at 9:26 AM, PJ <af.gourmet@videotron.ca > > <mailto:af.gourmet@videotron.ca> > > > <mailto:af.gourmet@videotron.ca > > <mailto:af.gourmet@videotron.ca>>> wrote: > > > > > > Yes, this is true and that is why I thought that glabel would > > > work; I am > > > trying to set up my computers with identical clones that I > > can update > > > with changes on the master machine from time to time and > > thus prevent > > > data loss in case of problems. So I use ad12 as the main > > system; if it > > > were to crash I would then boot from ad6 which is identical. > > But the > > > /etc/fstab is identical in both machines. So if I boot from > > ad6, I > > > will > > > get booted from ad12 ... so that doesn't work. It looks like we > > > need an > > > unique identifier for each disk. > > > > > > > > > Why not use gmirror? > > > > > > > > > -- > > > Adam Vande More > > because I am not using RAID. :-( > > > > > > gmirror + ggated = disk or slice replicated to remote system > > > > -- > > Adam Vande More > You ae trying to give me a migraine. :-) > But what happens if the disks are not identical in size? Dump/restore > allows for that; dump/restore will copy only the used date and not the > entire partition or slice. > > It depends on what your end goals is which is still not entirely clear. Do you want a disk that can be unplugged from a machine and used to boot immediately in your orginal system in case of hd failure. If yes then gmirror + ggated is the way to go. If you simply want data to be backed up on regular basis, something like rsync is easier. -- Adam Vande More
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