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Thread: Migrating from CMGPro (CommunigatePro)

  1. #21
    davidfsmith is offline Special Member
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    Default Migrated....

    well we've migrated to now use the Zimbra server, data is still transferring from the CMGPro server...

    So mail is still going across and my PERL hack is running to deal with the MAPI calendars / contacts.

    I've got about 100+ users who didn't use the MAPI connector who will be migrated at a later date to use the Zimbra connector, I'll probably use the PST Converter for them.... but we'll see.

    I'll post up user feedback and also other comments over the next week or so.

    Looking forward to finally killing the CMGPro server I must say.

  2. #22
    phoenix is online now Zimbra Consultant & Moderator
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    Default

    This seems to have been quite a slog to get this conversion done, it's been interesting reading your posts. Congratulations on the heroic effort.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  3. #23
    davidfsmith is offline Special Member
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    Default Getting there

    Well most of the people are now back up and running with email, all of the old MAPI users are using the ZM Connector and a few of the OSX people are using the iSync connector (nice that people can finally see each other's diaries)

    I've got the last 30 or so accounts to migrate over the weekend and then the CMGPro server will be pensioned off.

    I've also got 12Gb of RAM to slap into the Zimbra server.

    Initial feedback from users
    - The webmail is better
    - The ZM Connector is better (and more reliable) than the CMGPro one.
    - You can see mac users diaries?!
    - Where has my email gone? (those who haven't fully migrated)

    For those looking to undertake a move from CMGPro, I'd suggest that the move is worth it, but isn't simple, this is something that needs to be addressed. Creating the accounts was easy (using my perl kludge) the groupware migration and the data migration has just been a complete slog.

    People are only now trimming their accounts as we're imposing quota limits shortly...

    The largest email account is 19Gb, and having 100+ people rock up on Tuesday and connect to the mail server absolutely creamed it as all of their clients tried to sync up..... so if you migrate a lot of users / lot of data, try and do a staged switch on of mail clients.

    New SSL cert is place now, and I've also gone through the performance tweaking stuff in the wiki and applied all of that with the exception of the LDAP tweaks.

    Final thoughts?
    - Have plenty of coffee on standby for change over day.
    - Ensure you have a server to migrate to, you can't do this all one server (as we originally tried)
    - Users will ignore all your email and phone on their first day on the new system saying "where's my email"

    Still mostly done now, just a bit of mopping up to do and getting the remaining 200 people using connectors rather than IMAP.

    The fun never stops.

  4. #24
    nosilver4u is offline New Member
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    Default mapi scripts

    Could you post your scripts for the mapi data? calendar, contacts, and that sort of stuff? We're looking at a migration this weekend, and I don't want to have to manually import this stuff.

    thanks,
    Shane

  5. #25
    davidfsmith is offline Special Member
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    Default Groupware Script

    Attached is the groupware script to migrate calendar and contact information.

    I can't stress how important it is that you test it before using it in the wild, it was a hack cobbled together that "kinda" worked.

    I've not had the time to go back to it and tidy up / improve it.

    So in short, use at your own risk.... (and it can certainly be improved)
    Attached Files Attached Files

  6. #26
    KevinH's Avatar
    KevinH is offline Expert Member
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    Default

    Quote Originally Posted by nosilver4u View Post
    Could you post your scripts for the mapi data? calendar, contacts, and that sort of stuff? We're looking at a migration this weekend, and I don't want to have to manually import this stuff.

    thanks,
    Shane
    If the data is already in PST files you could use the PST import wizard.
    Looking for new beta users -> Co-Founder of Acompli. Previously worked at Zimbra (and Yahoo! & VMware) since 2005.

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