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Ho trovato questa guida per l'aggiornamento da Zimbra 7.2.7 a 8.6.
Mi sembra buona e la riporto cosi com'è.
A breve testo tutta la procedura visto che devo passare alla 8.6 dalla 7.2.7...  Vedremo.

18-01-2016
Ok testato con successo l'upgrade alla 8.6.
Piccola informazione sulla procedura. In situazione Multi-Server ho seguito questi passi.
Aggiornato come descritto sotto il server LDAP e MTA.
Ho poi, invece di aggiornare gli STORE (dove ho avuto problemi), creato dei nuovi server e migrato senza interruzioni di servizio le cassette postali.
Tutto perfetto Zimbra 8.6 operativa 100%
Luca


The first step is do a Backup, Snapshot, etc. A way that you have the proper rollback in case that something went bad. Then a suggested Upgrade path by me, is not supported by Zimbra because Zimbra 7 doesn't have support anymore, can be, I'm assuming that you have Ubuntu:

  1. Upgrade to 7.2.7, the latest GA for Zimbra Collaboration 7.
  2. Upgrade from 7.2.7 to Zimbra Collaboration 8.0.9 in Ubuntu 10.04
  3. Upgrade the Ubuntu Operating system from Ubuntu 10.04 to 12.04
  4. Upgrade the Zimbra Collaboration 8.0.9 with the Ubuntu 12.04 packages
  5. Upgrade from Zimbra Collaboration 8.0.9 to Zimbra Collaboration 8.6
  6. Upgrade the Ubuntu Operating system from Ubuntu 12.04 to 14.04
  7. Upgrade the Zimbra Collaboration 8.6 with the Ubuntu 14.04 packages

You can follow some of the steps detailed in this Wiki. And please read all the Release Notes during the Upgrades with advices, and upgrade procedures. If you have Virtualization, do a snapshot after each Upgrade is a must.

Remember that Zimbra Collaboration 7 doesn't have support anymore, and it will be marked with End of Technical Guidance in March 2015.

Good luck.



Ciao Luca



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