[CentOS] near-realtime file system replication

gjgowey at tmo.blackberry.net gjgowey at tmo.blackberry.net
Sat Oct 6 19:18:24 UTC 2007

If using a file system for the file storage isn't mandatory then I would go with an rdbms such as Postgres with the file stored in a blob field of a table.  If the systems are in the same location and can use a shared Filesystem then I would look into getting a netraid scsi card or something similar.  The netraid cards have the very nice capability of all sitting on a single scsi bus along with the datastore device (a hard drive or hdd array).  There's no replication that occurs because they are all using the same data source jointly.


Sent from my BlackBerry wireless handheld.

-----Original Message-----
From: "Akemi Yagi" <amyagi at gmail.com>

Date: Sat, 6 Oct 2007 12:01:44 
To:"CentOS mailing list" <centos at centos.org>
Subject: Re: [CentOS] near-realtime file system replication

On 10/6/07, Frank Büttner <frank-buettner at gmx.net> wrote:
> Akemi Yagi schrieb:
> > On 10/6/07, Frank Büttner <frank-buettner at gmx.net> wrote:
> >
> >> For GFS you dont't need SAN's. You can do it simly.
> >> Or take DRBD, but for it you must compile an kernel module.
> >> http://www.drbd.org/
> >
> > CentOS provides DRBD. See:
> >
> > http://wiki.centos.org/HowTos/Ha-Drbd

> But not at the latest version:(
> See Bug# 0002339, so you have often trouble when an new kernel update is
>  waiting at the door.

I believe they are up-to-date now.  My understanding is that there is
some delay after a new kernel comes out, but it should not be more
than a few days.  But we have to remember that the whole CentOS
project is based on voluntary work by both CentOS team members and the

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