Re: [Nolug] Fastest way to create a local mirror of a huge tree?

From: Brad Bendily <bendily_at_gmail.com>
Date: Wed, 7 Sep 2011 06:21:14 -0500
Message-Id: <D536E05B-A53C-42DB-9EAF-1176C9D36129@gmail.com>

Because you can?
Isn't that what Linux is all about, choices!

On Sep 7, 2011, at 5:54 AM, Ron Johnson <ron.l.johnson@cox.net> wrote:

> Why in God's name would I dd-over-ssh on a single machine?
>
> On 09/07/2011 05:46 AM, B. Estrade wrote:
>> I like the dd (over ssh) idea.
>>
>> B. Estrade<estrabd@gmail.com>
>> On Sep 7, 2011 12:23 AM, "Jimmy Hess"<mysidia@gmail.com> wrote:
>>> On Tue, Sep 6, 2011 at 10:21 PM, Ron Johnson<ron.l.johnson@cox.net>
>> wrote:
>>>> The mirror doesn't exist yet, so rsync's clever data-minimizing
>> algorithms
>>>> aren't valid. (Also, there are lots of symlinks that need be preserved.)
>>>> 1. cp -av /data /mnt/backups/data
>>>> 2. cd /data&& tar -cvf – . | (cd /mnt/backups/data&& tar -xpvf -)
>>>> 3. rsync -avz --stats --progress /data /mnt/backups/data
>>>>
>>> Netcat + XZ or gzip + CPIO or tar.
>>>
>>> nc otherhost portnumber | xz -d | cpio -idm
>>> find pathname -print | cpio -o -Hnewc | xz -1 | nc -l portnumber
>>>
>>> Then rsync to reconcile.
>>>
>>>
>>> If on a dedicated partition, consider a block-based tool that won't
>>> need to traverse the filesystem
>>> directory structure and won't need to copy unused disk blocks, e.g.
>> partimage.
>>>
>
> --
> Supporting World Peace Through Nuclear Pacification
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Received on 09/07/11

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