Multi-machine mirroring choices

[Aristedes Maniatis]

On 15/07/2008, at 3:54 PM, Jeremy Chadwick wrote:

> We moved all of our production systems off of using dump/restore  
> solely
> because of these aspects.  We didn't move to ZFS though; we went with
> rsync, which is great, except for the fact that it modifies file  
> atimes
> (hope you use Maildir and not classic mbox/mail spools...).

We do something similar, except that we use unison rather than rsync.  
This tool is a two way rsync, it deals with collisions and replicating  
files in both directions at once. Very nice. Look for it in the ports  
tree.

This has some advantages for us since we distribute load across  
several machines and have a cluster of machines which all replicate to  
each other. The data is such that collisions are almost never a concern.

Ari Maniatis



-------------------------->
ish
http://www.ish.com.au
Level 1, 30 Wilson Street Newtown 2042 Australia
phone +61 2 9550 5001   fax +61 2 9550 4001
GPG fingerprint CBFB 84B4 738D 4E87 5E5C  5EFA EF6A 7D2E 3E49 102A