From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ryusuke Konishi Subject: Re: Dump tools for checkpoints Date: Mon, 16 Mar 2009 09:57:58 +0900 (JST) Message-ID: <20090316.095758.61114786.ryusuke@osrg.net> References: <20090308.143916.113539820.ryusuke@osrg.net> <20090313162609.GD7494@zaphod.leonweber.de> <3214.84.133.153.87.1236965583.squirrel@ssl.its-beck.de> Reply-To: NILFS Users mailing list Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <3214.84.133.153.87.1236965583.squirrel-lZV7jZi4TBeO2lRZCxuEEg@public.gmane.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: users-bounces-JrjvKiOkagjYtjvyW6yDsg@public.gmane.org Errors-To: users-bounces-JrjvKiOkagjYtjvyW6yDsg@public.gmane.org To: users-JrjvKiOkagjYtjvyW6yDsg@public.gmane.org, mail-MZZvbRqs/9F0RdzJJlgK+g@public.gmane.org Hi, On Fri, 13 Mar 2009 18:33:08 +0100, mail-MZZvbRqs/9F0RdzJJlgK+g@public.gmane.org wrote: > Hi, > > > Is replication really a feature that a file system should implement? I > > think it should be implemented one layer below the fs. If one needs a > > replicated file system, there are things like drbd (distributed > > replicated block device). > > yes, the task is similar to what drbd does. But for nightly incremental > backup, drbd would be overkill. It's called "RAID1 over network"! Rsync is > slow and consumes much CPU. Incremental backup software can't cope with > big files AFAIK. Nilfs could fill that gap perfectly. > > - Have database / virtual machines / etc. on nilfs > - Do a nightly or hourly "nsync" to a remote mirror > > Regards, > > Pierre Beck "nsync" sounds nice! Regards, Ryusuke Konishi