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William Kenworthy <billk@×××××××××.au> wrote: |
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|
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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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> |
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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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> |
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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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> |
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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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> |
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|
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I had a bad drive, and I tried to use pvmove, but it stopped when it got |
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an error and would not tell me the file it had trouble with nor would |
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it move any data past that point -- is there a better way to recover |
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such data? I simply used the backup to get my data back, rather than |
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lvm. |
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|
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-- |
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Your life is like a penny. You're going to lose it. The question is: |
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How do |
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you spend it? |
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|
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John Covici |
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covici@××××××××××.com |