[DRBD-user] replicating system partitions

Martin Fick mogulguy at yahoo.com
Wed Sep 6 19:52:32 CEST 2006

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

If you really want to replicate your system, you could
consider using vservers.  

What I do is: I have a drbd partition which contains
an image of an entire vserver.  The vserver can then
be brought up on either node.  This allows for my
applications, vserver system configuration and data to
be replicated to both nodes and failed over with
heartbeat.  I don't think that I would suggest sharing
your host system files though.

Unfortunately I have not been able to run a nfs server
inside a vserver though. :(


--- Faisal Shaikh <fss at webstar.co.uk> wrote:

> Hi,
> Is it advisable to replicate the system partitions
> as well as the data 
> partitions (/var, / and /usr)?
> Both of my machines which I intend to use in the
> replication are i386 
> based (Athlon processors) and dont have any special
> hardware. They are 
> _not_ hardware clones of each other.
> The advantages I can think of are
> 1. System config changes are synced across as well,
> so the secondary 
> node is upto date configuration wise.
> 2. Less administration as a result of the above.
> 3. No need to relocate and make symlinks of
> directories like 
> /var/lib/nfs etc..
> Disadvantages:
> 1. Accidental mangling of config files on primary
> will be 
> instantaneously transferred to secondary.
> 2. Unknown demons that will present themselves when
> I install new software.
> Thanks,
> Faisal
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> drbd-user mailing list
> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user

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