[CentOS] Slightly OT: First Time KVM and LVM on Centos
Ross Walker
rswwalker at gmail.com
Tue Jun 21 13:47:25 UTC 2011
On Jun 20, 2011, at 9:56 AM, Kwan Lowe <kwan.lowe at gmail.com> wrote:
> On Thu, Jun 16, 2011 at 8:59 AM, Les Mikesell <lesmikesell at gmail.com> wrote:
>>
>>> There is no reason that should be true. Copying 20GB out of an LV
>>> should take exactly the same amount of time as copying 20GB out of a file.
>>
>> What about the destination? Wouldn't it likely be harder to find a place to put
>> the LV copy than space to write a file? Or can you copy back and forth?
>>
>> --
> I just copy the raw filesystem directly to the remote raw filesystem
> with dd over ssh. If needed you can dd the entire partition to a file
> also.
>
> With LVMs you can also mirror the LV across multiple LUNs, break the
> mirror, then move the other LUN to another system.
You might have better performance using Clonezilla over ssh then dd.
-Ross
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