Re: [CentOS] how do i have a clone centos server

[Johnny Hughes]

Mail Administrator wrote:

Dear All,

I do have a centos 5 srver running the following. the server is a dell pc
with standard config

1 gb ram
120 gb ide hdd
3.2 ghz cpu
NIC


Mail server
Dns Server
webmail
Mailscanner

now i would like to have another server like mirroring this server ..
so incase there is any problem with this server the other server is always
online and the problem server could be fixed without our users gettin
affected

apprecite if anybody can help giving some clues or is there any software
avaliable.
also is the hardware in both servers have to be identical or it can be
different

The easiest way to make that happen is to use a product called DRBD



Here is drbd info:

http://www.drbd.org/

http://www.drbd.org/users-guide/index.html

Thanks,
Johnny Hughes

I say easy, but the initial setup will be fairly hard as you will need to link all the things you want to fail over into a partition that you can then MIRROR to another machine (if you use drbd).

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