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Thread: HA: merging two mailstores in one server on failure?

  1. #1
    diegows is offline Member
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    Default HA: merging two mailstores in one server on failure?

    Hi.

    I'm building a Zimbra multi-server installation with 2 stores (using a SAN), 2 ldaps, 2 mta and 2 proxies. Each store has its owns sets of accounts (namespace splitted between servers). The HA of ldap, mta and proxies is easy and it's solved but store HA is a little complex.

    Is there a way to merge all the accounts in one server on a node failure and restore them to the original place on failback? I know that I could have a third server as standby/backup of any mailstore but I don't want to have an idle server.

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    Baylink is offline Elite Member
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    My snap reaction is that you have to handle HA on a server by server basis, and yes, you'll need at least one idle spare server (assuming you're doing something like container based HA; if you're doing heartbeat failover, one spare per server).

    HA ain't cheap; that's one reason why "real" HA is so rare.

    Last time I looked into this, back in '92 with Motorola 88K based commercial HA servers, it was the difference between $6k and something like $44k.
    Jay R. Ashworth - ZCS 6.0.9CE/CentOS5 - St Pete FL US - Music - Blog - Photography - IANAL - IAAMA
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  3. #3
    diegows is offline Member
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    Quote Originally Posted by Baylink View Post
    My snap reaction is that you have to handle HA on a server by server basis, and yes, you'll need at least one idle spare server (assuming you're doing something like container based HA; if you're doing heartbeat failover, one spare per server).

    HA ain't cheap; that's one reason why "real" HA is so rare.

    Last time I looked into this, back in '92 with Motorola 88K based commercial HA servers, it was the difference between $6k and something like $44k.
    ok, but what about merging all accounts in one server. It's impossible? I need to modify all account objects if I want something like that?

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    Baylink is offline Elite Member
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    I'm sure you could merge all your accounts into one server... but not at failure time, I wouldn't think.
    Jay R. Ashworth - ZCS 6.0.9CE/CentOS5 - St Pete FL US - Music - Blog - Photography - IANAL - IAAMA
    Try to Ask Questions The Smart Way -- you'll get better answers.

    Put your product and version in your profile/signature - All opinions strictly my own, even though I have an employer these days.
    If you [SOLVE] something, please tell everyone how for the archives
    And, please... read what people write, and answer the questions they asked, not the ones they didn't.

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