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Thread: Upgrade zimbra & OS suggestions

  1. #1
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    Default Upgrade zimbra & OS suggestions

    Hello,
    I'm looking for a suggestion on what would be the best practice when upgrading a Zimbra 5 server that is running on CentOS 4.6 (32 bit) to Zimbra 7 that will run on CentOS 6 (64bit).
    What would be the best way to upgrade?

    Thanks

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    Quote Originally Posted by vavai View Post
    Network Edition: Moving from 32-bit to 64-bit Server - Zimbra :: Wiki

    Read it carefully and plan for migration. Create a full backup before doing a migration.
    Thanks,
    But that is only one part of the problem.
    I need to:
    1. Upgrade to Zimbra 7 from Zimbra 5
    2. Upgrade the OS from CentOS 4 to CentOS 6
    3. Upgrade the OS from 32bit to 64bit

    I was thinking about upgrading Zimbra from 5 to 7 on the old 32bit CentOS 4 server. Installing a new CentOS 6 64bit server with Zimbra 7 and migrating to the new server.

    Would it work?
    Will I be able to use the migration tool from Zimbra 7 to do the migration?

  3. #3
    phoenix is offline Zimbra Consultant & Moderator
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    Read the Release Notes to see which version can be directly upgraded and follow the steps in the article you've been given (follow the instructions exactly) to move it to a new server - read the article in detail then practice a move in a test environment.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    Just one more question, that I can't find the answer to in the documentation.

    Will the upgrade process work for a non-licensed, open source installation,
    or will it only work for a licensed server?

  5. #5
    phoenix is offline Zimbra Consultant & Moderator
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    Quote Originally Posted by EvgInb View Post
    Just one more question, that I can't find the answer to in the documentation.

    Will the upgrade process work for a non-licensed, open source installation,
    or will it only work for a licensed server?
    If you're talking about the wiki article then it has been answered many times in the forums, follow the documentation and leave out any NE steps - you should also make sure you take adequate backups before making any changes/updates/moves.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    Quote Originally Posted by phoenix View Post
    If you're talking about the wiki article then it has been answered many times in the forums, follow the documentation and leave out any NE steps - you should also make sure you take adequate backups before making any changes/updates/moves.
    I'm talking about the V7 release notes, the Upgrade section.
    They talk about making sure that there is a valid license and that the Upgrade process will check this.

    Does that mean that for an open source server this process will not work?

    PS: Because this is my first time upgrading the server, I will make sure that a full backup is created before making any changes. Thanks for the tip

  7. #7
    phoenix is offline Zimbra Consultant & Moderator
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    Quote Originally Posted by EvgInb View Post
    I'm talking about the V7 release notes, the Upgrade section.
    They talk about making sure that there is a valid license and that the Upgrade process will check this.
    You haven't mentioned the NE version before, are you using NE? If you're not then why are you reading the NE Release Notes and not the Open SOurce version Release Notes?

    Quote Originally Posted by EvgInb View Post
    Does that mean that for an open source server this process will not work?
    I've already answered that in the part of my post you've quoted.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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    You are correct, I got the documents mixed up.

    I will go over the correct ones and update the post.

    Thanks for your time

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    I would note that CentOS is only up to RHEL 6.0. ZCS for RHEL6_64 require RHEL 6.1 or later. So it is ill advised to use CentOS 6 at this time until they catch up to RHEL6.
    Quanah Gibson-Mount
    Server Architect
    Zimbra, Inc
    --------------------
    Zimbra :: the leader in open source messaging and collaboration

  10. #10
    phoenix is offline Zimbra Consultant & Moderator
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    Quote Originally Posted by quanah View Post
    I would note that CentOS is only up to RHEL 6.0. ZCS for RHEL6_64 require RHEL 6.1 or later. So it is ill advised to use CentOS 6 at this time until they catch up to RHEL6.
    Doesn't the current kernel on CentOS6 overcome this bug or is there something else that's needed?

    My install of CentOS6 has the following kernel (with ZCS installed):

    Code:
    uname -r
    2.6.32-71.29.1.el6.x86_64
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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