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On Thu, 2012-04-12 at 22:58 +0300, Nikos Chantziaras wrote: |
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> On 12/04/12 22:49, Dale wrote: |
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> > Howdy, |
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> > |
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> > Well, it appears we got the init thingy working. I'm about ready to |
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> > move things around since one of my drives is about full and I need a |
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> > spare to move things around with. I use cp -a to copy things while |
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> > booted from a USB stick do hicky. So far, that has always worked and is |
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> > pretty fast. I do have a question tho. |
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> > |
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> > When I copy this over, do I still need to copy over null, console and |
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> > such to /dev? I know I don't need everything in /dev but do recall |
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> > needing those in the past. Has this changed since I'm using the init |
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> > thingy? Am I forgetting one? I thought there was three. |
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> > |
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> > Anything else that could be a gotcha? I plan to move this twice. Once |
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> > to the spare drive, repartition the OS drive then copy things back over |
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> > again. It's been a while and with LVM about to be used, I hope it is |
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> > the last time. |
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> |
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> Make sure this is really what you want. If *any* of the disks in the |
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> LVM goes bad, you lose everything, not just the data on that single disk. |
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> |
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> |
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Not necessarily so ... you can remove a failed drive and only lose the |
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data on that drive - the data on the other drives is usually accessible. |
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If a drive is in the process of failing you have more options to move |
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the data to another drive. If you dont have lvm ... the data on that |
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drive is toast anyway. |
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Downside, is you have to be aware that you are using LVM and respond |
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accordingly ... go at it the wrong way and it will be you who have lost |
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the data (on the whole set of disks), not LVM. Non LVM is simpler, but |
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the gain in flexibility offsets that enormously. |
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I have used LVM for years now, and have had failed drives, failing |
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drives and add/remove drives and have resized partitions quite a few |
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times over that period - without losing everything. Yes, I have |
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sometimes lost data on a drive before I could move it off ... but I look |
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at it from the point of view that without LVM, I would not have had a |
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chance to save what I did manage to get. |
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BillK |
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