Re: replicated file system?

Mark Komarinski mkomarinski at wayga.org
Tue Feb 28 16:11:21 EST 2012


Sorry for top posting (I'm mobile).

OCFS2 and GFS allow for active/active DRBD.  I tried using each and they wound up requiring more knowledge of crm and pacemaker than I was ready for.  I had each working on two different systems but it was unreliable - if you knew more about pacemaker you might fare better.

-Mark

----- Reply message -----
From: "Kenny Lussier" <klussier at gmail.com>
To: "GNHLUG" <gnhlug-discuss at mail.gnhlug.org>
Subject: replicated file system?
Date: Tue, Feb 28, 2012 2:44 pm
Hi All,
I am looking for new ideas on how to replicate file systems. I have a need for redundant ftp servers, which could either be active/standby or active/active, as there is a load balancer in front of them. Currently, we periodically rsync the directory over to the standby system. What I would like to do is have a mirrored/replicated/clustered file system so that both systems can be active at the same time, and the data is automagically available on either, even in the event that one server fails. The catch is that there is no back-end shared storage (no SAN, NFS, etc.). I thought about drbd, but that is active/backup only. Most other systems required shared storage. I'm looking at using incron/inotify or Unison, but I was curious to see how other people would creatively solve this problem. Ideas?


TIA,Kenny
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