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Thread: Backup consistency question

  1. #1
    apowell is offline Starter Member
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    Default Backup consistency question

    Currently for our backups I'm looping through the domains, putting them into maintenance mode, dumping LDAP and MySQL, rsyncing those dumps and the index and store directories to our backup server, then taking the domains out of maintenance mode. The problem that's arising is the user's are complaining about the downtime of the system.

    I was curious what the side effects of taking the server out of maintenance mode after the LDAP/MySQL dumps would be. Obviously you'd run the risk of having files in index or store become inconsistent, but (in my head) that would only potentially apply to new emails (which wouldn't be consistent with the state at the dump anyway).

    Am I mistaken? Could something catastrophic occur because of this approach? What are the general implications?

    Thanks!

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    bdial's Avatar
    bdial is offline Moderator
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    the worst things i could think would happen would be

    1. the index you backup is corrupted because it's being written to while you're backing up. easy fix you'd just have to reindex the mailbox after it was restored.

    2. there would be blobs that you're backing up that wouldn't have an entry in the database. you wouldn't really know this though unless you ran zmblobchk for the account after it was restored.

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    bdial's Avatar
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    btw you're supposed to paste the output of zmcontrol -v in your profile, not the command

    running zmcontrol -v as the zimbra user will print out your version info

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    apowell is offline Starter Member
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    Thanks for the reply bdial.

    With regards to the blobs, once I have the blobs that aren't in the database, do I just re-inject them? Or is there another procedure to make zimbra aware of the mails?

    With regards to the profile ... it's whatever the forums did when it created my account.

    Thanks again!

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    bdial's Avatar
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    /opt/zimbra/bin/zmlmtpinject

  6. #6
    phoenix is online now Zimbra Consultant & Moderator
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    Quote Originally Posted by apowell View Post
    With regards to the profile ... it's whatever the forums did when it created my account.
    You run the 'zmcontrol -v' command on your Zimbra server then paste the output of that in your forum profile so we don't have to keep asking which version of Zimbra you have installed.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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