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Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?
From: |
edgar . soldin |
Subject: |
Re: [Duplicity-talk] Direct backup of LVM snapshot partitions? |
Date: |
Tue, 11 Dec 2012 10:57:34 +0100 |
User-agent: |
Mozilla/5.0 (Windows NT 5.1; rv:16.0) Gecko/20121026 Thunderbird/16.0.2 |
On 11.12.2012 10:09, GDR! wrote:
> On 12/10/2012 10:10 PM, address@hidden wrote:
>> On 10.12.2012 19:01, GDR! wrote:
>>> On 12/10/2012 01:16 PM, George MacKerron wrote:
>>>> Thanks Edgar. Yes, I'm already using LVM snapshots. I just wanted to then
>>>> back up the raw volume data, rather than mount the snapshot and back up
>>>> the files it contains.
>>>
>>> Just to justify what he's doing and point that "just mount it" is not a
>>> good answer: he might want to back up a Windows partition that he's
>>> using in KVM, or some other file system which has special attributes
>>> which may be lost when mounting in Linux. I've been facing this problem
>>> too, but came up with no solution.
>>>
>>
>> i see your point. but even in that case a snapshot would be the better
>> option. if there really is no way to keep all attributes* the he can still
>> dump the snapshot blockwise and backup that. the idea of a snapshot is that
>> it is in a valid state, synced without any half written files or such.
>> not sure if lvm actually can assure the last bit for vm disk filesystems
>> though.
>>
>> ..ede/duply.net
>>
>> * i am sure none of these would be backed up by duplicity anyway ;)
>
> So you're suggesting dumping it (eg. with dd) and backing up the dump
> with duplicity?
>
> My goal is to have remote, incremental backups of the volume, so just
> snapshots aren't really enough.
>
i don't really see where you draw the line here. what do you think is the
problematic difference between backing up the device snapshot or the live file
system?
..ede
- [Duplicity-talk] Direct backup of LVM snapshot partitions?, George MacKerron, 2012/12/07
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, George MacKerron, 2012/12/10
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/10
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, George MacKerron, 2012/12/10
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/10
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, GDR!, 2012/12/10
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/10
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, GDR!, 2012/12/11
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?,
edgar . soldin <=
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, T. Prost, 2012/12/11
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/11
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, T. Prost, 2012/12/12
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/12
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, T. Prost, 2012/12/12
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/12
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, T. Prost, 2012/12/12
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, edgar . soldin, 2012/12/12
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, T. Prost, 2012/12/13
- Re: [Duplicity-talk] Direct backup of LVM snapshot partitions?, Michael Terry, 2012/12/13