BackupPC-users

Re: [BackupPC-users] Using rsync for blockdevice-level synchronisation of BackupPC pools

2009-09-10 17:41:11
Subject: Re: [BackupPC-users] Using rsync for blockdevice-level synchronisation of BackupPC pools
From: Christian Völker <chrischan AT knebb DOT de>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Thu, 10 Sep 2009 23:36:27 +0200
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Hi Tim,

> Anyway, the idea of trying to automatically work with VMware images at the 
> block level without VMware's tools is not that great.  
True.
Thanks for the great mail. It subsummed really nearly everything which
is related to all this.
Just one point where you seem to be wrong:
You mentioned "VMware tools" (don't get confused with the "official"
VMware Tools running inside the guest) which are only available on ESXi
for money.
Are you aware of the VI Perl Toolkit? That contains Perl and a couple of
Perl scripts you can execute remotely even without a VirtualCenter
server. And as far as I know VMware has a Linux vApp with the installed
toolkit ready to download. So this should solve a lots of issues as it
offers the same functionality (for free!) to ESXi as a standalon ESX
has. Just remotely. As far as I remember you can even do some stuff
directly to ESXi instead of the need of VirtualCenter [not sure, I have
always a VirtualCenter running ;)].

> *could* shut down the guest, make an LVM snapshot, restart the guest and 
> use the LVM snapshot to perform a block-level rsync-style (or even 
> cp-style) copy of the images. 
Re taking snapshots of the guest instead of shutting down. With
journaling file systems this shouldn't be an issue. I use ext3 with
"data=ordered" thus preventing any issues with the filesystem during a
snapshot/ backup.

I just removed my snapshot and realized I have data growth about 8GB/
day. So not too much. I have to figure out now a way how to perform
backups of the pool....block based as any filesystem based ones failed
up to now.



Greetings

Christian
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