[CentOS] file system replication

[Valeri Galtsev]

On Thu, October 9, 2014 12:39 pm, Jason T. Slack-Moehrle wrote:
> Hi Everyone,
>
> I need to keep 2 systems identical. Mostly e-mail directories, web
> directories, mysql,

With databases you can not make sync of their data directories (on a
filesystem level) while the daemon is running and accessing them in
general. You may think of mysql redundant server or replication... Take a
look here:

https://dev.mysql.com/doc/refman/5.0/en/replication.html

Valeri

> etc. The goal here is to have a 2nd system ready to go
> it the first one starts to exhibit hardware issues.
>
> What are options to have this happen? I'm going out on a limb and thinking
> rsync but I haven't used it past just simple use cases.
>
> Can anyone provide some insight for me?
>
> CentOS 6.5.
>
> Jason
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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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