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Thread: OS edition hot standby server

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    fviero is offline Project Contributor
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    Default OS edition hot standby server

    Hi list

    I know there had been much debate about the backup/restore issue and also about clustering zimbraīs OS edition but i could not find a consistent solution. Well, actually there shouldnīt have one. Basically, i have zimbra installed on one server and would like to have a second as hot-standby. Simply copying the entire /opt/zimbra folder, as mentioned somewhere on the forum, didnīt yeld any results. Well, let me try to focus: Is there a way to have a good setup for a hot-stanby using zimbra opensource? If yes, could anyone point me in the right direction. Iīm sort of new to Zimbra, so any help would be much appreciated.

    Thanks in advance to all of you.

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    fviero is offline Project Contributor
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    Default OS edition hot stby server

    Sorry, hereīs some further info on the environment. DRDB is not a choice and iīm not using LVM

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    Hello & welcome

    If DRDB is not a choice (nor GFS) then you're stuck.
    There's currently no way to do hot-sync or replicate a "master" server to a "slave" one.

    With the Network Edition, you can use RedHat Cluster Suite.

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    fviero is offline Project Contributor
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    Hi Klug

    Thanks for the warm welcome.

    I knew i could receive a message saying: youīre stuck
    Well, DRDB should be a choice, but we did not set /opt to a partition for itself. I think i cannot use drdb at folder level, is that correct? The system have a very simple partition scheme. a /, a /boot and a /var. /opt obviously ended up on / and i cannot drdb the root partition. This system is already in production.

    I donīt know about GFS, checking now...

    Thanks.

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    Klug's Avatar
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    You'll have the same problem with GFS...

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    fviero is offline Project Contributor
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    Thatīs sad, but i was prepared for that.

    Well, letīs switch the point of view somewhat. What about a backup server? Whatīs the the solution of choice for most people?

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    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by fviero View Post
    Sorry, hereīs some further info on the environment. DRDB is not a choice and iīm not using LVM
    Why don't you backup your current Zimbra install then set-up your system again with LVM then do DRBD? You can reinstall your system from the backup.

    As for a backup server, I have my DNS hosted by easyDNS and they provide a backup for when my system is not available, when I'm bac up it's forwarded to me as normal.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    fviero is offline Project Contributor
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    That has been discussed here with my team. Itīs on the list of possible solutions and since this is a small install (only 3.3GB in /opt/zimbra) this option is higly regarded. There are only at around 50 accounts with 100MB quotas.

    Right now iīm considering giving the following options to my customer:

    1. pheonix solution on the previous reply
    2. backup server instead of hot-stby

    Still wanting to know about the backup solutions.

    Thanks aonce more.

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    fviero is offline Project Contributor
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    Ok, weīve decided to go the drbd way. Weīll repartition the disk and let /opt be in its own partition. Anything i should keep in mind running a setup like that?

    Thanks for your replies

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    Klug's Avatar
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    Quote Originally Posted by fviero View Post
    Anything i should keep in mind running a setup like that?
    It's not supported

    The most difficult is to setup heartbeat.

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