How to migrating from ZCS server A to ZCS server B ?

[phpasp]

Hi all,

Environment:
Server A:
OS:centos 4.6 32bit
Zimbra:5.0.13 Open Source Edition (Production)
users: 150
Data size of /opt/zimbra: 15GB

Server B:
OS:centos 4.6 32bit
Zimbra:5.0.13 Open Source Edition (no user and messages)

Purpose:
Migration Server A for all accounts and mail (include password,user settings,aliases,distribution lists,And so on.) to the server B
All is not changed,Just replace ther Server A, What do i do?
Any suggestions?

Thank your very much for your help.

Regards

[phoenix]

There are lots of articles in the forums, the wiki and the Zimbra blog, have a read of some of them and see what necessary then ask any questions you may have: site:zimbra.com +"new server" - Yahoo! Search Results

[phpasp]

I found many ways , but it's cold backup,need to stop zimbra service, is there any hot backup and restore for it ?
Thank you all.

[phoenix]

Originally Posted by phpasp

I found many ways , but it's cold backup,need to stop zimbra service, is there any hot backup and restore for it ?

Yes, I believe there one (at least) using LVM snapshot in the forums but you will need some downtime (albeit short) to do it, if you want to backup a running server then you need the Network Edition.

[chauvetp]

I HIGHLY recommend seeing the "AJCody" page on migration:
Ajcody-Notes-Server-Move - Zimbra :: Wiki

It covers a server move from one platform to another. Using rsync while the server was running, and then rsync once again while neither server was running minimized the downtime to half an hour or so. This was for a 900 or so user system with 350GB of disk usage so YMMV.

[phpasp]

Thanks all.